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Boeing 737 · Air Conditioning 题库（224 题）

Boeing 737 机型「Air Conditioning」相关知识共 224 道题。想练习或模拟考试，请到 题库 · 模拟考试。
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1.The cockpit door

  1. Can only be unlocked electrically.
  2. Can only be locked with A.C. power. ✓
  3. Can only be locked with a key.
正确答案：Can only be locked with A.C. power.　·　737　·　来源 b737.org.uk

2.The cockpit door blow-out panels

  1. Open into the cockpit. ✓
  2. Open into the cabin.
  3. Open either way for pressure equalisation
正确答案：Open into the cockpit.　·　737　·　来源 b737.org.uk

3.To exit the cockpit with the cockpit door jammed closed

  1. Grasp the cockpit door emergency exit handle on the lower part of the door and rotate clockwise.
  2. Grasp the cockpit door emergency exit handle on the lower part of the door and push.
  3. Grasp the cockpit door emergency exit handle on the upper part of the door and pull forward. ✓
正确答案：Grasp the cockpit door emergency exit handle on the upper part of the door and pull forward.　·　737　·　来源 b737.org.uk

4.When turning the 737-800 with winglets on the ground

  1. The landing gear geometry and sweep back of the wings result in the tail arc being greater than the wing tip arc.
  2. The landing gear geometry and sweep back of the wings result in the tail arc being less than the wing tip arc. ✓
  3. The landing gear geometry and sweep back of the wings result in the tail arc being the same as the wing tip arc.
正确答案：The landing gear geometry and sweep back of the wings result in the tail arc being less than the wing tip arc.　·　737　·　来源 b737.org.uk

5.When turning the 737-800 without winglets on the ground

  1. The landing gear geometry and sweep back of the wings result in the tail arc being less than the wing tip arc.
  2. The landing gear geometry and sweep back of the wings result in the tail arc being greater than the wing tip arc. ✓
  3. The landing gear geometry and sweep back of the wings result in the tail arc being the same as the wing tip arc.
正确答案：The landing gear geometry and sweep back of the wings result in the tail arc being greater than the wing tip arc.　·　737　·　来源 b737.org.uk

6.When turning a 737-800 with winglets on the ground, the minimum pavement width for an 180 degree turn is

  1. 79.1 feet ( 24.1 metres ) ✓
  2. 66.4 feet ( 20.2 metres )
  3. 85.9 feet ( 26.2 metres )
正确答案：79.1 feet ( 24.1 metres )　·　737　·　来源 b737.org.uk

7.The cargo compartments are

  1. Pressurised approximately equal to cabin pressure. ✓
  2. Not pressurised.
  3. Pressurised to their normal differential pressure of 2.0 P.S.I.
正确答案：Pressurised approximately equal to cabin pressure.　·　737　·　来源 b737.org.uk

8.In case of sudden loss of aircraft pressurisation, the pressure relief of the cargo compartments is accomplished by

  1. Pressure relief valves set at 7.45 P.S.I.D.
  2. Pressure relief valves set at 8.65 P.S.I.D.
  3. Blow-out panels. ✓
正确答案：Blow-out panels.　·　737　·　来源 b737.org.uk

9.The aircraft water system is supplied by

  1. Two water tanks located either side of the aft cargo compartment.
  2. A single water tank located behind the aft cargo compartment. ✓
  3. One main water tank with separate tanks for the toilets.
正确答案：A single water tank located behind the aft cargo compartment.　·　737　·　来源 b737.org.uk

10.Water tank pressurisation is supplied from

  1. The left hand pneumatic duct only. ✓
  2. The right hand pneumatic duct only.
  3. The crew oxygen bottle.
正确答案：The left hand pneumatic duct only.　·　737　·　来源 b737.org.uk

11.The water tank capacity (737NG) is

  1. 62.1 gallons (235 liters)
  2. 62.1 gallons (235 liters) but a standpipe decreases the maximum capacity to 60, 50 or 40 gallons by customer option ✓
  3. 62.1 gallons (235 liters) but a standpipe decreases the maximum capacity to 60 gallons (227 liters)
正确答案：62.1 gallons (235 liters) but a standpipe decreases the maximum capacity to 60, 50 or 40 gallons by customer option　·　737　·　来源 b737.org.uk

12.The potable water quantity indicator is located

  1. On the fwd attendant panel
  2. On the aft attendant panel ✓
  3. above the aft service door.
正确答案：On the aft attendant panel　·　737　·　来源 b737.org.uk

13.Placing the Lights Test Switch to the TEST position

  1. Inhibits the master caution recall system. ✓
  2. Illuminates all amber caution lights only.
  3. Illuminates all cockpit lighting and warning lights.
正确答案：Inhibits the master caution recall system.　·　737　·　来源 b737.org.uk

14.Failure of one main A.C. bus causes

  1. A partial loss of cockpit and passenger lighting. ✓
  2. All cabin lights to extinguish.
  3. No effect on the cockpit or passenger lighting.
正确答案：A partial loss of cockpit and passenger lighting.　·　737　·　来源 b737.org.uk

15.When ARMED, the emergency exit lights will automatically come on

  1. When the aircraft reaches a preset G-load limit.
  2. If electrical power to DC bus 1 fails or AC power is turned off. ✓
  3. Upon contact with water.
正确答案：If electrical power to DC bus 1 fails or AC power is turned off.　·　737　·　来源 b737.org.uk

16.The NO SMOKING signs when selected to AUTO

  1. Illuminate when the landing gear is extended. ✓
  2. Illuminate when the flaps are extended and the landing gear is retracted.
  3. Illuminate when the landing gear is extended and the flaps are greater than 10 degrees.
正确答案：Illuminate when the landing gear is extended.　·　737　·　来源 b737.org.uk

17.The FASTEN BELTS signs when selected to AUTO will

  1. Extinguish when the flaps are extended and the landing gear is up.
  2. Illuminate when the auto-pilot is not engaged.
  3. Illuminate when landing gear or flaps are extended. ✓
正确答案：Illuminate when landing gear or flaps are extended.　·　737　·　来源 b737.org.uk

18.With Ground Power plugged in and the battery switch OFF, the Dim Entry Lights are powered

  1. Only when A.C. power is connected.
  2. By an electrical supply from the hot battery bus. ✓
  3. By the internal batteries of the emergency lighting.
正确答案：By an electrical supply from the hot battery bus.　·　737　·　来源 b737.org.uk

19.The emergency exit lights and signs are powered

  1. From separate emergency power supplies installed in the passenger cabin. ✓
  2. From the hot battery bus.
  3. From the battery bus.
正确答案：From separate emergency power supplies installed in the passenger cabin.　·　737　·　来源 b737.org.uk

20.The illumination of the standby magnetic compass

  1. Can not be controlled as it is permanently illuminated from the Battery Bus.
  2. Is controlled by the Captain's A.F.D.S. light control.
  3. Is controlled by a separate switch at the base of the standby magnetic compass. ✓
正确答案：Is controlled by a separate switch at the base of the standby magnetic compass.　·　737　·　来源 b737.org.uk

21.With the NO SMOKING & FASTEN BELTS switches in the AUTO position

  1. The NO SMOKING signs will illuminate any time the flaps are extended.
  2. The NO SMOKING signs will illuminate any time the gear is extended. ✓
  3. The NO SMOKING signs will illuminate only when gear and flaps are extended.
正确答案：The NO SMOKING signs will illuminate any time the gear is extended.　·　737　·　来源 b737.org.uk

22.Failure of the A.C. transfer bus NO.2 will

  1. Automatically turn on the emergency instrument flood lights. ✓
  2. Automatically turn off the emergency instrument flood lights.
  3. Have no effect on the emergency instrument flood lights.
正确答案：Automatically turn on the emergency instrument flood lights.　·　737　·　来源 b737.org.uk

23.With the POSITION light switch in the ON BAT position and the AC buses not powered

  1. The position ( navigation ) lights can not be illuminated.
  2. The position ( navigation ) lights will illuminate with the battery switch selected OFF.
  3. The position ( navigation ) lights will illuminate with the battery switch selected ON. ✓
正确答案：The position ( navigation ) lights will illuminate with the battery switch selected ON.　·　737　·　来源 b737.org.uk

24.With the Battery Switch ON and no AC power connected, available cockpit lighting includes

  1. The Dim Entry lights, Dome lights, and Integral instrument lights.
  2. White Dome lights, Standby Compass light. ✓
  3. The Dim Entry lights and Instrument Floods.
正确答案：White Dome lights, Standby Compass light.　·　737　·　来源 b737.org.uk

25.When operating the airstair from the interior control panel

  1. The entry door must be opened to the cocked position. ✓
  2. The entry door must be fully open
  3. The entry door may be open or closed
正确答案：The entry door must be opened to the cocked position.　·　737　·　来源 b737.org.uk

26.When operating the airstair from the interior control panel in standby mode on DC power

  1. The STAIRS OPERATING light illuminates during extension until the airstair is fully extended.
  2. The STAIRS OPERATING light illuminates during retraction until the airstair door is fully closed.
  3. The STAIRS OPERATING light will not illuminate. ✓
正确答案：The STAIRS OPERATING light will not illuminate.　·　737　·　来源 b737.org.uk

27.Operation of the airstairs in winds above

  1. 40 kts is not recommended. ✓
  2. 45 kts is not recommended.
  3. 40 kts is not permitted.
  4. 45 kts is not permitted.
正确答案：40 kts is not recommended.　·　737　·　来源 b737.org.uk

28.The fwd and aft entry doors and the galley service doors have

  1. Three automatic slides and one manual slide at the aft galley service door.
  2. Three manually operated slides and one automatic slide at the forward entry door.
  3. Automatic slides. ✓
正确答案：Automatic slides.　·　737　·　来源 b737.org.uk

29.Portable EXIT lights are

  1. Above both overwing exits.
  2. Not fitted on the B737 aircraft ✓
  3. Above both overwing exits and flight deck door.
正确答案：Not fitted on the B737 aircraft　·　737　·　来源 b737.org.uk

30.The 737CL emergency exit hatches can be removed from the outside by

  1. Pushing in the exterior panel at the top, then pushing inward and lifting it up. ✓
  2. Pulling out and rotating the recessed handle.
  3. They cannot be removed from outside the aircraft.
正确答案：Pushing in the exterior panel at the top, then pushing inward and lifting it up.　·　737　·　来源 b737.org.uk

31.Escape lines (ropes/straps) are fitted

  1. Above the cockpit sliding windows and in overwing escape hatch frames.(Rear escape hatches only on B737-400). ✓
  2. Above all doors, emergency exits and cockpit slidings.
  3. Above the forward passenger door and cockpit sliding windows.
正确答案：Above the cockpit sliding windows and in overwing escape hatch frames.(Rear escape hatches only on B737-400).　·　737　·　来源 b737.org.uk

32.The First Officers sliding window can be

  1. Opened from the inside only.
  2. Opened from the outside only.
  3. Opened from the inside and outside. ✓
正确答案：Opened from the inside and outside.　·　737　·　来源 b737.org.uk

33.The passenger oxygen system is activated when the cabin reaches an altitude of

  1. 14,000 Feet. ✓
  2. 10,000 Feet.
  3. 9,500 Feet.
正确答案：14,000 Feet.　·　737　·　来源 b737.org.uk

34.The oxygen system on board the aircraft has

  1. Two separate systems, one for the flight deck and one for the cabin. ✓
  2. One single system for all oxygen requirements
  3. Three separate systems, one for the flight deck, one for the cabin and one for the aft galley cabin attendants.
正确答案：Two separate systems, one for the flight deck and one for the cabin.　·　737　·　来源 b737.org.uk

35.During a decompression, the passenger oxygen will automatically drop from its stowage compartment. Oxygen will flow to all masks

  1. Immediately.
  2. Only when any one of the masks of an oxygen generator unit is pulled down. ✓
  3. When the passenger breathes, - the system is on demand.
正确答案：Only when any one of the masks of an oxygen generator unit is pulled down.　·　737　·　来源 b737.org.uk

36.In each lavatory there is

  1. A two mask passenger oxygen unit. ✓
  2. A one mask passenger oxygen unit.
  3. No passenger oxygen unit.
正确答案：A two mask passenger oxygen unit.　·　737　·　来源 b737.org.uk

37.To use the passenger portable oxygen

  1. Turn the yellow knob in an anticlockwise direction and plug the bottle into the overhead connection.
  2. Turn the yellow knob in a counterclockwise direction and plug the mask into the desired bottle outlet. ✓
  3. Plug the mask into the desired outlet only.
正确答案：Turn the yellow knob in a counterclockwise direction and plug the mask into the desired bottle outlet.　·　737　·　来源 b737.org.uk

38.The pre-flight inspection check of the escape slide units is

  1. The retainer (girt) bars are fastened to the floor before passenger boarding.
  2. The pressure indicator reads not less than 2800 P.S.I. and not more than 3200 P.S.I.
  3. The pressure indicator is in the green band. ✓
正确答案：The pressure indicator is in the green band.　·　737　·　来源 b737.org.uk

39.To operate a BCF extinguisher

  1. Hold the extinguisher upright, remove the ringed safety pin, aim the extinguisher at the base of the flames from a distance of 6 feet and press the top lever. ✓
  2. Twist the yellow knob in an anti-clockwise direction and depress the trigger releasing CO2 onto the fire.
  3. Hold the extinguisher upright, remove the ringed safety pin, twist the yellow knob in a clockwise direction, aim the extinguisher at the base of the flames from a distance of 3 feet and press the top lever.
正确答案：Hold the extinguisher upright, remove the ringed safety pin, aim the extinguisher at the base of the flames from a distance of 6 feet and press the top lever.　·　737　·　来源 b737.org.uk

40.Loud-hailers are located

  1. One only in the starboard hatrack at the rear.
  2. On the port side of the passenger cabin, one at the front, one at the rear. ✓
  3. On the starboard side of the aircraft, one at the front, one at the rear.
正确答案：On the port side of the passenger cabin, one at the front, one at the rear.　·　737　·　来源 b737.org.uk

41.The passenger cabin Emergency Exit light switch is located at

  1. The Fwd galley power panel.
  2. The Fwd attendants panel.
  3. The Aft attendants panel. ✓
正确答案：The Aft attendants panel.　·　737　·　来源 b737.org.uk

42.The fire axe is located in

  1. The flight deck. ✓
  2. A pocket on the cockpit door.
  3. The forward galley.
正确答案：The flight deck.　·　737　·　来源 b737.org.uk

43.The lavatory fire extinguisher system operates

  1. Both automatically and manually.
  2. manually.
  3. automatically. ✓
正确答案：automatically.　·　737　·　来源 b737.org.uk

44.The lavatory fire extinguisher system will automatically discharge when heat levels exceed

  1. 200 degrees F.
  2. 180 degrees F. ✓
  3. 250 degrees F.
正确答案：180 degrees F.　·　737　·　来源 b737.org.uk

45.To check that a lavatory fire extinguisher has not discharged

  1. Check the nozzle tips (aluminium colour after discharge) and heat sensitive discs which discolour from the heat of the fire. ✓
  2. Check the Extinguisher pressure gauge.
  3. Check the Extinguisher contents indicator
正确答案：Check the nozzle tips (aluminium colour after discharge) and heat sensitive discs which discolour from the heat of the fire.　·　737　·　来源 b737.org.uk

46.Each passenger oxygen unit in the cabin

  1. Can be shut off once the flow of oxygen has started - by cabin staff action only.
  2. Cannot be shut off once the flow of oxygen has started. ✓
  3. Can be shut off by pulling any mask down a second time.
正确答案：Cannot be shut off once the flow of oxygen has started.　·　737　·　来源 b737.org.uk

47.The B737-700 aircraft cabin equipment includes

  1. Five portable oxygen bottles and one therapeutic oxygen set.
  2. Four portable oxygen bottles and two therapeutic oxygen sets. ✓
  3. Three portable oxygen bottles and one therapeutic oxygen set.
正确答案：Four portable oxygen bottles and two therapeutic oxygen sets.　·　737　·　来源 b737.org.uk

48.The passenger oxygen system

  1. Is supplied from the passenger oxygen bottle located in the forward cargo compartment.
  2. Is supplied by individual chemical oxygen generators, one for each passenger.
  3. Is supplied by individual chemical oxygen generators located at each Passenger Service Unit. ✓
正确答案：Is supplied by individual chemical oxygen generators located at each Passenger Service Unit.　·　737　·　来源 b737.org.uk

49.Each passenger oxygen generator when activated

  1. Will produce oxygen for approximately 12 minutes. ✓
  2. Will produce oxygen for approximately 7 minutes.
  3. Will only produce oxygen on demand for approximately 20 minutes.
正确答案：Will produce oxygen for approximately 12 minutes.　·　737　·　来源 b737.org.uk

50.Passenger oxygen flowing to a mask is visually confirmed by

  1. An amber in-line flow indicator.
  2. A green in-line flow indicator. ✓
  3. A white in-line flow indicator
正确答案：A green in-line flow indicator.　·　737　·　来源 b737.org.uk

51.Normal pressure of the flight crew oxygen system is

  1. 1850 P.S.I. ✓
  2. 2000 P.S.I.
  3. 1500 P.S.I.
正确答案：1850 P.S.I.　·　737　·　来源 b737.org.uk

52.Pressing the RESET/TEST slide lever at a crew member station will

  1. Activate the oxygen flow continuously if the mask is stowed.
  2. Activate the oxygen flow momentarily ( to test the regulator ) if the mask is stowed. ✓
  3. Not activate any oxygen flow until the mask is removed.
正确答案：Activate the oxygen flow momentarily ( to test the regulator ) if the mask is stowed.　·　737　·　来源 b737.org.uk

53.The crew oxygen Flow Indicator will

  1. Show a white cross when the oxygen mask is tested.
  2. Show a yellow cross when oxygen is not flowing.
  3. Show a yellow cross when oxygen is flowing. ✓
正确答案：Show a yellow cross when oxygen is flowing.　·　737　·　来源 b737.org.uk

54.The crew member oxygen EMERGENCY/TEST selector is a

  1. Red control knob. ✓
  2. Green control knob.
  3. Yellow control knob.
正确答案：Red control knob.　·　737　·　来源 b737.org.uk

55.100% oxygen is supplied under positive pressure at all cabin altitudes whenever

  1. The EMERGENCY/TEST selector is rotated anti-clockwise.
  2. The EMERGENCY/TEST selector is pulled out.
  3. The EMERGENCY/TEST selector is rotated clockwise. ✓
正确答案：The EMERGENCY/TEST selector is rotated clockwise.　·　737　·　来源 b737.org.uk

56.With the oxygen NORMAL/100% selector in the N (normal) position

  1. A continuous flow of 100% pure oxygen is provided irrespective of demand.
  2. A mixture of ambient air with oxygen is provided on demand. ✓
  3. A continuous flow of 100% pure oxygen is provided on demand.
正确答案：A mixture of ambient air with oxygen is provided on demand.　·　737　·　来源 b737.org.uk

57.To use a crew oxygen mask

  1. Squeeze the red RELEASE levers with the thumb and forefinger and remove from stowage. ✓
  2. Push the red RELEASE levers with the thumb and forefinger and unlatch the retaining clip.
  3. Push the EMERGENCY/TEST selector with the thumb and remove from stowage.
正确答案：Squeeze the red RELEASE levers with the thumb and forefinger and remove from stowage.　·　737　·　来源 b737.org.uk

58.If the crew oxygen mask is not stowed, then by

  1. Opening both stowage box doors and pressing the RESET/TEST slide lever, 100% oxygen under pressure is supplied to the mask.
  2. Opening both stowage box doors and pressing the RESET/TEST slide lever, the oxygen supply at the individual crew member station is shut off.
  3. Closing both stowage box doors and pressing the RESET/TEST slide lever, the oxygen supply at the individual crew member station is shut off. ✓
正确答案：Closing both stowage box doors and pressing the RESET/TEST slide lever, the oxygen supply at the individual crew member station is shut off.　·　737　·　来源 b737.org.uk

59.As the crew oxygen harness inflates

  1. The flow indicator will continuously show a yellow cross anytime the mask is removed from the stowage box.
  2. The flow indicator will remain black.
  3. The flow indicator will momentarily show a yellow cross. ✓
正确答案：The flow indicator will momentarily show a yellow cross.　·　737　·　来源 b737.org.uk

60.To check the crew oxygen

  1. 1) Mask unstowed , NORMAL/100% switch - 100%. 2) RESET/TEST slide lever - push down and hold. 3) Observe a momentary yellow cross (FLOW INDICATOR) 4) EMERGENCY/TEST selector - rotate clockwise.
  2. 1) Mask stowed , NORMAL/100% switch - 100%. 2) RESET/TEST slide lever - push down and hold. 3) Observe a momentary yellow cross (FLOW INDICATOR) 4)EMERGENCY/TEST selector - push and hold. 5) Observe a constant yellow cross (FLOW INDICATOR) ✓
  3. 1) Mask stowed , NORMAL/100% switch - NORMAL. 2) RESET/TEST slide lever - push down and hold 3) Observe a constant yellow cross (FLOW INDICATOR) 4) EMERGENCY/TEST selector - push and hold. 5) Observe a momentary yellow cross (FLOW INDICATOR)
正确答案：1) Mask stowed , NORMAL/100% switch - 100%. 2) RESET/TEST slide lever - push down and hold. 3) Observe a momentary yellow cross (FLOW INDICATOR) 4)EMERGENCY/TEST selector - push and hold. 5) Observe a constant yellow cross (FLOW INDICATOR)　·　737　·　来源 b737.org.uk

61.The passenger oxygen mask stowage units are activated

  1. Automatically by a barometric pressure switch when the cabin altitude is 14,000 Feet or when the PASS OXYGEN switch on the overhead panel is positioned to NORMAL.
  2. Automatically by a barometric pressure switch when the cabin altitude is 10,000 Feet or when the PASS OXYGEN switch on the overhead panel is positioned to ON.
  3. Automatically by a barometric pressure switch when the cabin altitude is 14,000 Feet, or when the PASS OXYGEN switch on the overhead panel is positioned to ON. ✓
正确答案：Automatically by a barometric pressure switch when the cabin altitude is 14,000 Feet, or when the PASS OXYGEN switch on the overhead panel is positioned to ON.　·　737　·　来源 b737.org.uk

62.Crew oxygen system pressure is correctly indicated when

  1. The battery switch is on. ✓
  2. Does not require electrical power.
  3. The battery switch is off ( Hot battery Bus ).
正确答案：The battery switch is on.　·　737　·　来源 b737.org.uk

63.Duct pressure splits soon after landing.

  1. This is a self test of the PRSOV solenoid to close the valve, independent of the torque motor. ✓
  2. This is an abnormal condition that shall be reported to maintenance.
  3. This is an abnormal situation caused by a solenoid defect. It shall be reported to the maintenance.
正确答案：This is a self test of the PRSOV solenoid to close the valve, independent of the torque motor.　·　MAX　·　来源 smartcockpit.com

64.The ram air system provides cooling air for the:

  1. Cargo area. ✓
  2. Heat exchangers.
  3. Packs
  4. Cargo area and packs.
正确答案：Cargo area.　·　MAX　·　来源 smartcockpit.com

65.The amount of fan air that is ducted through the pre-cooler is controlled by the:

  1. Thermostatic pre-cooler valve. ✓
  2. Modulating and shut-off valve.
  3. Ram air controller
正确答案：Thermostatic pre-cooler valve.　·　MAX　·　来源 smartcockpit.com

66.If any individual zone is switched OFF, the Temperature Selector setting will be ignored by the temperature control system.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

67.What is the primary source of conditioned air for the cockpit?

  1. The right pack.
  2. The left pack. ✓
  3. Both packs.
  4. Ground air.
正确答案：The left pack.　·　MAX　·　来源 smartcockpit.com

68.Engine bleed air pressure is controlled by means of the bleed air valve which acts as both a shutoff and pressure regulating valve.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

69.The maximum differential pressure is:

  1. 7.90 psi.
  2. 8.45 psi.
  3. 8.65 psi.
  4. 9.10 psi. ✓
正确答案：9.10 psi.　·　MAX　·　来源 smartcockpit.com

70.Illumination of the amber BLEED TRIP OFF light indicates what valve has automatically closed?

  1. Modulating and Shutoff valve.
  2. Engine Bleed Air valve. ✓
  3. Isolation valve.
  4. 5th valve of the compressor section.
正确答案：Engine Bleed Air valve.　·　MAX　·　来源 smartcockpit.com

71.Illumination of the BLEED light indicates:

  1. Excessive engine bleed air temperature, over-pressure or under-pressure OR a failure within the bleed air system OR an incorrect bleed air configuration after takeoff or go-around. ✓
  2. Excessive engine bleed air temperature, over-pressure OR under-pressure.
  3. Excessive engine bleed air temperature OR pressure.
正确答案：Excessive engine bleed air temperature, over-pressure or under-pressure OR a failure within the bleed air system OR an incorrect bleed air configuration after takeoff or go-around.　·　MAX　·　来源 smartcockpit.com

72.A leak in the APU Bleed Air Duct will be indicated by:

  1. Right WING BODY OVERHEAT light illuminated.
  2. APU BLEED light illuminated on overhead panel
  3. Left WING BODY OVERHEAT light illuminated ✓
  4. Left and Right WING BODY OVERHEAT lights illuminated.
正确答案：Left WING BODY OVERHEAT light illuminated　·　MAX　·　来源 smartcockpit.com

73.The air data inertial reference units (ADIRUs) provides ambient static pressure,baro corrected altitude, non corrected altitude and calibrated airspeed to bothautomatic controllers. The ADIRUs receive barometric corrections from the Captain's and First Officer's BARO reference selectors. The automatic controllers also receive:

  1. Throttle position from both stall management computers.
  2. Throttle position from both stall management computers and signals from the air-ground sensors. ✓
  3. Throttle position from both stall management computers and signals from the IRS.
  4. Throttles position and signals from the IRS.
正确答案：Throttle position from both stall management computers and signals from the air-ground sensors.　·　MAX　·　来源 smartcockpit.com

74.What is the purpose of the recirculation fans?

  1. To increase the pressure in the cabin.
  2. To decrease the air conditioning system pack load. ✓
  3. If increased smoke removal is required.
  4. To operate as air mixers in the mix manifold.
正确答案：To decrease the air conditioning system pack load.　·　MAX　·　来源 smartcockpit.com

75.What are the causes of an amber AUTO FAIL light?

  1. Loss of DC power or controller fault.
  2. Outflow valve control fault or excessive differential pressure.
  3. Excessive rate of cabin pressure change or high cabin altitude (above 15,800 ft).
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　MAX　·　来源 smartcockpit.com

76.The recirculation fan system circulates air from the passenger cabin around thelining of the forward cargo compartment. When the overboard exhaust valve isclosed, exhaust air from the equipment cooling system is also diffused to the lining of the aft cargo compartment for additional inflight heating.

  1. True.
  2. False. ✓
正确答案：False.　·　MAX　·　来源 smartcockpit.com

77.The DUAL BLEED light is illuminated. Engine thrust:

  1. Should be limited to 40% N1.
  2. Is unlimited. Dual bleed light is advisory only.
  3. Should be limited to idle. ✓
正确答案：Should be limited to idle.　·　MAX　·　来源 smartcockpit.com

78.APU bleed air used to start NO.1 engine is:

  1. Routed via the No. 1 engine bleed air valve to the No.1 engine starter valve.
  2. Routed direct to the No.1 engine starter valve. ✓
  3. Controlled by the modulating and shut-off valve.
正确答案：Routed direct to the No.1 engine starter valve.　·　MAX　·　来源 smartcockpit.com

79.Zone Temperature Control - There are three zones: flight deck (CONT CAB), forward passenger cabin (FWD CAB) and aft passenger cabin (AFT CAB). Desired zone temperature is set by adjusting the individual Temperature Selectors. The selector range is approximately:

  1. 18 deg.C (65 deg.F) (18u00b0C) to 30 deg.C (85 deg.F). ✓
  2. 17 deg.C (63 deg.F) (18u00b0C) to 26 deg.C (79 deg.F).
  3. 16 deg.C (61 deg.F) (18u00b0C) to 25 deg.C (77 deg.F).
  4. 19 deg.C (66 deg.F) (18u00b0C) to 29 deg.C (84 deg.F).
正确答案：18 deg.C (65 deg.F) (18u00b0C) to 30 deg.C (85 deg.F).　·　MAX　·　来源 smartcockpit.com

80.The differential pressure of the cabin is limited by a pressure relief system - which of the following statements is correct?

  1. There are two pressure relief valves which limit differential pressure to 9.1 psi. ✓
  2. There is an outflow valve which opens when cabin pressure reaches 9.1 psi above ambient.
  3. There are two negative pressure relief valves, which limit the cabin pressure to 9.1 psi above ambient.
  4. There is a negative pressure relief valve, which limits the cabin pressure to 9.1 psi above ambient.
正确答案：There are two pressure relief valves which limit differential pressure to 9.1 psi.　·　MAX　·　来源 smartcockpit.com

81.During preflight procedure the trim air switch is left in the OFF position and only one pack is selected ON for air conditioning. What is the consequence?

  1. Since the trim air is off both packs will average the temperature that satisfies the zone which requires the most cooling
  2. During single pack operation the zone temperature is controlled the same as during two pack operation.
  3. With the TRIM AIR selected OFF, the pack attempts to produce an air temperature to satisfy the average temperature demands of all three zones. ✓
  4. If a passenger cabin zone trim air, or all trim air is lost, the forward and aft zone temperature demands will be averaged for control of the left pack.
正确答案：With the TRIM AIR selected OFF, the pack attempts to produce an air temperature to satisfy the average temperature demands of all three zones.　·　MAX　·　来源 smartcockpit.com

82.Water tank pressurisation in flight is normally provided by:

  1. 5th and 9th stage air from the No. 2 engine.
  2. 5th and 9th stage air from the No. 1 engine. ✓
  3. Bleed air from the APU.
正确答案：5th and 9th stage air from the No. 1 engine.　·　MAX　·　来源 smartcockpit.com

83.The packs produce the coolest temperature selected in any of the zones, with the other zones temperature controlled by adding hot trim air to produce the required temperature.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

84.When will the descent mode be activated in the pressurization system?

  1. When TD is reached.
  2. When retard is announced in the FMA.
  3. When descending 0.25psi below the selected flight altitude. ✓
  4. When within 15 000 feet of the landing airport.
正确答案：When descending 0.25psi below the selected flight altitude.　·　MAX　·　来源 smartcockpit.com

85.Conditioned air from the left hand pack flows directly to the flight deck from the Mix Manifold.

  1. True.
  2. False. ✓
正确答案：False.　·　MAX　·　来源 smartcockpit.com

86.When does the amber DUAL BLEED Light illuminate?

  1. When the APU bleed valve is open.
  2. When the APU bleed valve is open and the No.1 engine bleed switch is ON. ✓
  3. When the APU bleed valve is open, the No.2 engine bleed switch is ON and the isolation valve is closed.
  4. When the APU bleed valve is open and the No.1 engine bleed switch is OFF.
正确答案：When the APU bleed valve is open and the No.1 engine bleed switch is ON.　·　MAX　·　来源 smartcockpit.com

87.During descent when the descent mode is activated:

  1. Aircraft descends 0.25 psi below the selected FLT ALT. ✓
  2. Aircraft descends 0.50 below the selected FLT ALT.
  3. Aircraft descends 0.25 psi below the selected LAND ALT.
  4. Aircraft descends 0.50 psi below the selected LAND ALT.
正确答案：Aircraft descends 0.25 psi below the selected FLT ALT.　·　MAX　·　来源 smartcockpit.com

88.While taxiing in, the controller drives the outflow valve slowly to the full open position depressurizing the cabin.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

89.The recirculation fans:

  1. Reduce air conditioning pack load. ✓
  2. Are driven by a DC motor.
  3. Increase airflow at greater cabin differential pressures.
  4. Provide overheat detection downstream of the packs.
正确答案：Reduce air conditioning pack load.　·　MAX　·　来源 smartcockpit.com

90.The amber DUAL BLEED Light is illuminated before starting engines. What should you do?

  1. Nothing. This is normal condition before engine start. ✓
  2. Do not start the engines, call Maintenance.
  3. Do not start the engines, check MEL.
  4. Shut down the APU and use a pneumatic ground cart for engine start.
正确答案：Nothing. This is normal condition before engine start.　·　MAX　·　来源 smartcockpit.com

91.What happens when the WING BODY OVHT TEST switch is pressed?

  1. The amber WING-BODY OVERHEAT Lights illuminate. ✓
  2. The amber PACK TRIP OFF Lights illuminate.
  3. The amber BLEED TRIP OFF Lights illuminate.
  4. All statements are correct.
正确答案：The amber WING-BODY OVERHEAT Lights illuminate.　·　MAX　·　来源 smartcockpit.com

92.The cabin will automatically pressurize to 0.125 PSID on the ground when:

  1. Engine thrust is increased towards takeoff thrust. ✓
  2. When the PSEU is activated.
  3. When the aircraft goes into the ground mode of the air-ground sensor.
  4. When the aircraft goes into the air mode of the air-ground sensor.
正确答案：Engine thrust is increased towards takeoff thrust.　·　MAX　·　来源 smartcockpit.com

93.Where is the forward outflow valve located?

  1. Forward of the left hand air conditioning inlet. ✓
  2. Forward of the right hand air conditioning inlet.
  3. In the nose landing gear bay.
  4. There is no forward outflow valve.
正确答案：Forward of the left hand air conditioning inlet.　·　MAX　·　来源 smartcockpit.com

94.What happens to engine fan air that is used to cool engine bleed air?

  1. It is ducted into the pneumatic manifold.
  2. It is ducted into the crossbleed manifold.rn
  3. It is discharged overboard. ✓
  4. It is ducted into the 5th stage compressor section.
正确答案：It is discharged overboard.　·　MAX　·　来源 smartcockpit.com

95.The amber OFF SCHEDULE DESCENT light illuminates. What does it indicate?

  1. The aircraft has descended before reaching the planned cruise altitude set in the altitude window. ✓
  2. The main pressurization controller is unable to maintain pressurization and has to be manually shift to manual.
  3. The pressurization standby controller has failed and will automatically shift to STANDBY.
  4. The pressurisation controller has failed and will automatically shift to manual.
正确答案：The aircraft has descended before reaching the planned cruise altitude set in the altitude window.　·　MAX　·　来源 smartcockpit.com

96.What systems need pneumatic power for operation?

  1. Air Conditioning, pressurization, wing anti-ice and APU.
  2. Wing anti-ice, APU and engine starting.
  3. APU, engine starting, air Conditioning and pressurization.
  4. Engine starting, air conditioning, pressurization, wing and engine anti-ice, hydraulic reservoirs and water tank pressurization. ✓
正确答案：Engine starting, air conditioning, pressurization, wing and engine anti-ice, hydraulic reservoirs and water tank pressurization.　·　MAX　·　来源 smartcockpit.com

97.Takeoff is allowed with Pack switches in HIGH, but landing is not permitted:

  1. True.
  2. False. ✓
正确答案：False.　·　MAX　·　来源 smartcockpit.com

98.Where are the bleed trip sensors installed?

  1. On the 9th Stage bleed air line.
  2. On the engine side of the engine bleed air valve.
  3. Sensors are positioned on both sides of the engine bleed air valve. ✓
  4. On the bleed air duct prior to the pack valve.
正确答案：Sensors are positioned on both sides of the engine bleed air valve.　·　MAX　·　来源 smartcockpit.com

99.When pressing Master Caution Recall the CONT CAB amber ZONE TEMP light illuminates.

  1. This indicates a failure of both the primary and standby temperature control systems.
  2. Due to failure of the primary flight deck temperature control, automatic switching to the backup system has occurred. ✓
  3. This indicates one PACK has overheated and has to be reset by pushing the trip reset button.
  4. This indicates that both temperature controllers will regulate the temperature to a preset value.
正确答案：Due to failure of the primary flight deck temperature control, automatic switching to the backup system has occurred.　·　MAX　·　来源 smartcockpit.com

100.With a ground pneumatic source connected and the isolation valve switch selected to CLOSE.

  1. The pneumatic pressure would be indicated by both the left and right pointers on the pneumatic duct pressure indicator.
  2. The pneumatic pressure would be indicated by the right hand pointer on the pneumatic duct pressure indicator. ✓
  3. The pneumatic pressure would be indicated by the left hand pointer on the pneumatic duct pressure indicator.
正确答案：The pneumatic pressure would be indicated by the right hand pointer on the pneumatic duct pressure indicator.　·　MAX　·　来源 smartcockpit.com

101.One PACK light illuminates on recall only. What does it indicate?

  1. There is a FOD in the RAM AIR intake forcing the pack to shut down.
  2. Both primary and secondary pack controls have failed.
  3. The primary pack control has failed and the pack is now controlled by the standby pack control ✓
  4. Both temperature control valves have shut closed in the affected pack.
正确答案：The primary pack control has failed and the pack is now controlled by the standby pack control　·　MAX　·　来源 smartcockpit.com

102.Automatic switching to 'high air flow' occurs if both engine bleed air switches are OFF and the APU bleed air switch is ON, regardless of flap position, air-ground status or number of packs operating.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

103.Overheat detection is provided by temperature sensors located:

  1. In the mix manifold.
  2. Downstream of the packs.
  3. Downstream of the packs and the mix manifold. ✓
  4. Downstream of the packs, the trim air valve and the mix manifold.
正确答案：Downstream of the packs and the mix manifold.　·　MAX　·　来源 smartcockpit.com

104.Cabin altitude is normally rate-controlled by the cabin pressure controller up to a cabin altitude of ____ feet at the airplane maximum certified ceiling of ____feet.

  1. 10 000 ft and 41 000 ft.
  2. 8 000 ft and 41 000 ft. ✓
  3. 12 000 ft and 41 000 ft.
  4. 7 500 ft and 41 000 ft.
正确答案：8 000 ft and 41 000 ft.　·　MAX　·　来源 smartcockpit.com

105.What is the flight level limitation for DISPATCH with one pack INOP?

  1. FL410.
  2. FL250. ✓
  3. FL180.
  4. FL100.
正确答案：FL250.　·　MAX　·　来源 smartcockpit.com

106.Loss of airflow due to failure of an equipment cooling fan results in illumination of the related equipment cooling OFF light. Selecting the alternate fan should restore airflow and extinguish the OFF light within approximately _____.

  1. 5 seconds. ✓
  2. 20 seconds.
  3. 60 seconds.
  4. 3 minutes.
正确答案：5 seconds.　·　MAX　·　来源 smartcockpit.com

107.The altitude warning horn is:

  1. An intermittent warning horn.
  2. A continuous warning horn.
  3. An intermittent warning horn accompanied by a Master Caution warning. ✓
  4. A continuous warning horn accompanied by a Master Caution warning.
正确答案：An intermittent warning horn accompanied by a Master Caution warning.　·　MAX　·　来源 smartcockpit.com

108.What is the position of the isolation valve when the ISOLATION VALVE switch is in AUTO?

  1. The isolation valve is always open
  2. The isolation valve is always closed.
  3. The isolation valve automatically modulates between open & closed, depending on pneumatic load.
  4. Open when any Engine Bleed Air switch or Air Conditioning pack switch is positioned OFF. ✓
正确答案：Open when any Engine Bleed Air switch or Air Conditioning pack switch is positioned OFF.　·　MAX　·　来源 smartcockpit.com

109.Deflector doors are installed forward of the ram air inlet doors to prevent slush ingestion prior to liftoff and after touchdown. Deflector doors extend when activated:

  1. Electrically by the air-ground safety sensor ✓
  2. Hydraulically when extended the main landing gear
  3. Pneumatically.
  4. Electrically in the air and pneumatically on ground
正确答案：Electrically by the air-ground safety sensor　·　MAX　·　来源 smartcockpit.com

110.An amber AUTOFAIL indication will illuminate if one or more of the following conditions occur:

  1. A single controller failure when the 'ALTN' light is also illuminated. ✓
  2. Loss of AC power for more than 15 seconds. Main outflow valve DC motor fails or if the cabin altitude exceeds 13,875 ft.
  3. The cabin altitude exceeds 13,875 ft with the loss of AC power.
  4. The cabin altitude exceeds 10,000 ft.
正确答案：A single controller failure when the 'ALTN' light is also illuminated.　·　MAX　·　来源 smartcockpit.com

111.What causes the amber PACK TRIP OFF Light to illuminate?

  1. Main distribution duct temperature has exceeded limits.
  2. Compressor outlet duct temperature has exceeded limits
  3. Turbine inlet duct temperature has exceeded limits.
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　MAX　·　来源 smartcockpit.com

112.The APU is capable of supplying bleed air for two packs on the ground, or one pack in flight.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

113.Engine bleed air is obtained from:

  1. 4th and 9th stage of the compressor section.
  2. 5th and 9th stage of the compressor section. ✓
  3. 4th and 8th stage of the compressor section.
  4. 5th and 8th stage of the compressor section.
正确答案：5th and 9th stage of the compressor section.　·　MAX　·　来源 smartcockpit.com

114.The TRIP RESET switch is pushed to reset a PACK, WING-BODY OVERHEAT and BLEED TRIP OFF, it isolates the associated valve and extinguishes the alert.

  1. True.
  2. False. ✓
正确答案：False.　·　MAX　·　来源 smartcockpit.com

115.Where are the wing-body overheat sensors located?

  1. Engine cowl lips, wing leading edge slats, air conditioning bays, electronic equipment bay, APU bleed duct.
  2. Engine struts, wing inboard leading edges, air conditioning bays, APU bleed duct, keel beam. ✓
  3. Engine struts, wing leading edge slats, air conditioning bays, APU duct, keel beam.
  4. Engine cowling lips, wing leading edge slats, air conditioning bays, APU compartment, keel beam.
正确答案：Engine struts, wing inboard leading edges, air conditioning bays, APU bleed duct, keel beam.　·　MAX　·　来源 smartcockpit.com

116.The isolation valve is:

  1. DC operated.
  2. AC operated. ✓
  3. AC controlled and pneumatically operated.
正确答案：AC operated.　·　MAX　·　来源 smartcockpit.com

117.If all zone and primary pack controls fail, how is cabin temperatures controlled?

  1. The cabin temperatures cannot be controlled in this situation.
  2. The last settings before the failure will be maintained until the packs are selected OFF.
  3. The standby pack controls command the packs to produce the average temperature demand of the 2 passenger cabin zones. ✓
  4. A fixed cabin temperature will be produced in this situation 24 deg.C (75 deg.F) from the left pack, and 18 deg.C (64 deg.F) from the right pack.
正确答案：The standby pack controls command the packs to produce the average temperature demand of the 2 passenger cabin zones.　·　MAX　·　来源 smartcockpit.com

118.Due to a malfunction you are required to return to the airport of departure. To avoid the OFF SCHED DESCENT warning you reset the FLT ALT. What can you expect?

  1. The system will be recalculating the pressurization for the departure airport
  2. The pressurization will increase its ventilation and possibly pressurization will be lost
  3. The automatic abort capability for the departure airport is lost ✓
  4. Nothing will happen and you will still get the OFF SCHED DESCENT warning.
正确答案：The automatic abort capability for the departure airport is lost　·　MAX　·　来源 smartcockpit.com

119.Cruising at FL 370. The motorized Overboard Exhaust valve will open if:

  1. Either pack switches are in HIGH and recirculation fan is OFF. ✓
  2. Both pack switches are in AUTO and recirculation fan is OFF.
  3. Both pack switches are in HIGH and recirculation fan is ON.
  4. Both pack switches are in AUTO and recirculation fan is ON.
正确答案：Either pack switches are in HIGH and recirculation fan is OFF.　·　MAX　·　来源 smartcockpit.com

120.A ZONE TEMP light may be reset by the trip reset switch on the Bleed Panel

  1. True. ✓
  2. False. This reset switch is only for PACK and BLEED TRIP OFF resets.
  3. False. This reset is only for resetting a PACK trip.
  4. False. This reset switch is for BLEED TRIP OFF only.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

121.Given the scenario that the expected cruise level of FL310 was selected into the FLT ALT selector during preflight, but subsequently the aircraft climbed to FL390.

  1. A differential pressure of 7.45 psi is maintained by the negative pressure relief valve.
  2. A differential pressure of 6.1 psi is maintained by the positive and the negative pressure relief valves.
  3. A differential pressure of 9.1 psi is maintained by the positive pressure relief valve. ✓
  4. A differential pressure of 8.35 psi is maintained by the forward outflow valve
正确答案：A differential pressure of 9.1 psi is maintained by the positive pressure relief valve.　·　MAX　·　来源 smartcockpit.com

122.In cruise the air conditioning ram air doors are:

  1. Fully open.
  2. Fully closed.
  3. Modulate between open and closed as required for pack temperature control. ✓
  4. Modulate as a function of airspeed.
正确答案：Modulate between open and closed as required for pack temperature control.　·　MAX　·　来源 smartcockpit.com

123.The 9th stage modulating and shut-off valve:

  1. Will open if the 5th stage air is insufficient in maintaining proper pressure. ✓
  2. Is open at all times irrespective of 5th stage air pressure output.
  3. Will open if the APU is insufficient in maintaining proper pressure.
正确答案：Will open if the 5th stage air is insufficient in maintaining proper pressure.　·　MAX　·　来源 smartcockpit.com

124.Where do the AUTO mode controllers receive their barometric information from?

  1. The captain's pitot static system.
  2. The FO's pitot static system.
  3. The ADIRUs. ✓
  4. The two pitot static systems.
正确答案：The ADIRUs.　·　MAX　·　来源 smartcockpit.com

125.If a PACK light can be reset by the TRIP RESET switch then:

  1. The fault was caused by an overheat trip. ✓
  2. The fault was caused by a controller fault.
  3. The fault was caused by an overheat trip or by a controller fault.
  4. The pack should be selected off as per the QRH.
正确答案：The fault was caused by an overheat trip.　·　MAX　·　来源 smartcockpit.com

126.The amber DUAL BLEED light indicates a possible APU back pressure condition and thrust must be limited to IDLE.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

127.Cabin air outflow is controlled by the outflow valve and the overboard exhaustvalve. A small amount is also exhausted through toilet and galley vents, miscellaneous fixed vents, and by seal leakage.

  1. True. ✓
  2. False.
正确答案：True.　·　MAX　·　来源 smartcockpit.com

128.The pneumatic duct pressure gauge:

  1. Is DC powered.
  2. Indicates pressure in left and right pneumatic ducts. ✓
  3. Indicates pressure available for engine anti-icing.
正确答案：Indicates pressure in left and right pneumatic ducts.　·　MAX　·　来源 smartcockpit.com

129.A DUCT OVERHEAT light only will cause:

  1. The temperature mix valves to drive full cold. ✓
  2. The temperature mix valves to drive full hot.
  3. An automatic shutdown of the pack.
  4. A BLEED TRIP OFF.
正确答案：The temperature mix valves to drive full cold.　·　MAX　·　来源 smartcockpit.com

130.How many Trim Air Pressure Regulators are there in the Air Conditioning system?

  1. Three.
  2. Two.
  3. One. ✓
  4. There are no Trim Air Pressure Regulators, only Trim Air Modulating valves.
正确答案：One.　·　MAX　·　来源 smartcockpit.com

131.The wing-body overheat light comes on. What is the related master caution warning?

  1. AIR COND. ✓
  2. OVHT DET.
  3. OVERHEAD.
  4. As the light is in the proximity of the pilot's perception there is no master caution for this condition.
正确答案：AIR COND.　·　MAX　·　来源 smartcockpit.com

132.When operating on the Standby Pack Controls, what temperatures will the packs be producing?

  1. An average temperature for the two cabin zones. ✓
  2. The trim air modulating valves close so no pack air is provided to the two cabin zones, only re-circulated air is provided.
  3. Left pack produces 18 deg.C (64 deg.F) , right pack produces 22 deg.C (72 deg.F).
  4. The flight deck required temperature will also be provided to the passenger cabin.
正确答案：An average temperature for the two cabin zones.　·　MAX　·　来源 smartcockpit.com

133.The right WING-BODY OVERHEAT light is illuminated, what area is affected?

  1. The keel beam.
  2. APU bleed duct.
  3. Left aircond bay.
  4. Right engine strut. ✓
正确答案：Right engine strut.　·　MAX　·　来源 smartcockpit.com

134.From where does the Cabin Auto Controller get its inputs.

  1. From the static ports.
  2. From the Captain's CDU.
  3. From the ADIRUs. ✓
  4. From the EFIS control panel.
正确答案：From the ADIRUs.　·　MAX　·　来源 smartcockpit.com

135.If all Temperature Selectors are positioned OFF, the pack controls will cause the left pack to maintain a fixed temperature of ____ and the right pack to maintain ____ as measured at the pack temperature sensor.

  1. 20 deg.C (68 deg.F) and 18 deg.C (65 deg.F)
  2. 24 deg.C (75 deg.F) and 18 deg.C (65 deg.F) ✓
  3. 18 deg.C (65 deg.F) and 22 deg.C (72 deg.F)
  4. 17 deg.C (65 deg.F) and 24 deg.C (72 deg.F)
正确答案：24 deg.C (75 deg.F) and 18 deg.C (65 deg.F)　·　MAX　·　来源 smartcockpit.com

136.An illuminated BLEED TRIP OFF light indicates:

  1. Too high temperature in bleed air duct and bleed air valve stays open.
  2. Too high temperature in bleed air duct and bleed air valve stays closes.
  3. Too high pressure in bleed air duct and bleed air valve stays open.
  4. Too high temperature or pressure in bleed air duct and bleed air valve stays closes. ✓
正确答案：Too high temperature or pressure in bleed air duct and bleed air valve stays closes.　·　MAX　·　来源 smartcockpit.com

137.The cabin pressure controller controls cabin pressure in the following modes: AUTO (automatic) - ALT (alternate) - MAN (manual).

  1. All three modes use DC motor. ✓
  2. Automatic mode uses AC motor while the two other modes use DC motor.
  3. Automatic and alternate modes use AC motor while the manual mode use DC motor.
  4. All three modes use AC motor.
正确答案：All three modes use DC motor.　·　MAX　·　来源 smartcockpit.com

138.If all zone controls and primary pack controls fail, the standby pack controlscommand the packs to produce air temperatures which will satisfy the averagetemperature demand of the two cabin zones. The trim air modulating valves will:

  1. Open.
  2. Close. ✓
正确答案：Close.　·　MAX　·　来源 smartcockpit.com

139.How are the Engine Bleed Air valves powered?

  1. They are AC activated and pneumatically operated.
  2. They are DC activated and pneumatically operated. ✓
  3. They are pneumatically activated and AC operated.
  4. They are pneumatically activated and DC operated.
正确答案：They are DC activated and pneumatically operated.　·　MAX　·　来源 smartcockpit.com

140.The motorized Exhaust valve:

  1. Allows for increased ventilation in the smoke removal configuration.
  2. Serves as backup to the outflow valve if the outflow valve fails.
  3. Is normally open in pressurized flights above 8,000 feet.
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　MAX　·　来源 smartcockpit.com

141.The ram air system deflector doors:

  1. Are always extended when the gear is down.
  2. Extend during slow flight when flaps are not retracted.
  3. Modulate between fully extended and retracted through the entire flight.
  4. Extend on the ground only. ✓
正确答案：Extend on the ground only.　·　MAX　·　来源 smartcockpit.com

142.In MANUAL pressurization mode the outflow is driven by?

  1. A motor supplied from DC standby bus. ✓
  2. A motor supplied from DC bus 2.
  3. A motor supplied from DC bus 1.
  4. Requires AC power from transfer bus 1.
正确答案：A motor supplied from DC standby bus.　·　MAX　·　来源 smartcockpit.com

143.Cruising at FL 370. The motorized Overboard Exhaust valve will open if:

  1. Either pack switches are in HIGH and recirculation fan is OFF. ✓
  2. Both pack switches are in AUTO and recirculation fan is OFF.
  3. Both pack switches are in HIGH and recirculation fan is ON.
  4. Both pack switches are in AUTO and recirculation fan is ON.
正确答案：Either pack switches are in HIGH and recirculation fan is OFF.　·　NG　·　来源 smartcockpit.com

144.The cabin will automatically pressurize to 0.125 PSID on the ground when:

  1. Engine thrust is increased towards takeoff thrust. ✓
  2. When the PSEU is activated.
  3. When the aircraft goes into the ground mode of the air-ground sensor.
  4. When the aircraft goes into the air mode of the air-ground sensor.
正确答案：Engine thrust is increased towards takeoff thrust.　·　NG　·　来源 smartcockpit.com

145.If all Temperature Selectors are positioned OFF, the pack controls will cause the left pack to maintain a fixed temperature of ____ and the right pack to maintain ____ as measured at the pack temperature sensor.

  1. 20 deg.C (68 deg.F) and 18 deg.C (65 deg.F)
  2. 24 deg.C (75 deg.F) and 18 deg.C (65 deg.F) ✓
  3. 18 deg.C (65 deg.F) and 22 deg.C (72 deg.F)
  4. 17 deg.C (65 deg.F) and 24 deg.C (72 deg.F)
正确答案：24 deg.C (75 deg.F) and 18 deg.C (65 deg.F)　·　NG　·　来源 smartcockpit.com

146.An illuminated BLEED TRIP OFF light indicates:

  1. Too high temperature in bleed air duct and bleed air valve stays open.
  2. Too high temperature in bleed air duct and bleed air valve stays closes.
  3. Too high pressure in bleed air duct and bleed air valve stays open.
  4. Too high temperature or pressure in bleed air duct and bleed air valve stays closes. ✓
正确答案：Too high temperature or pressure in bleed air duct and bleed air valve stays closes.　·　NG　·　来源 smartcockpit.com

147.What happens to engine fan air that is used to cool engine bleed air?

  1. It is ducted into the pneumatic manifold.
  2. It is ducted into the crossbleed manifold.
  3. It is discharged overboard. ✓
  4. It is ducted into the 5th stage compressor section.
正确答案：It is discharged overboard.　·　NG　·　来源 smartcockpit.com

148.Overheat detection is provided by temperature sensors located:

  1. In the mix manifold.
  2. Downstream of the packs.
  3. Downstream of the packs and the mix manifold. ✓
  4. Downstream of the packs, the trim air valve and the mix manifold.
正确答案：Downstream of the packs and the mix manifold.　·　NG　·　来源 smartcockpit.com

149.What is the flight level limitation for DISPATCH with one pack INOP?

  1. FL410.
  2. FL250. ✓
  3. FL180.
  4. FL100.
正确答案：FL250.　·　NG　·　来源 smartcockpit.com

150.What is the purpose of the recirculation fans?

  1. To increase the pressure in the cabin.
  2. To decrease the air conditioning system pack load. ✓
  3. If increased smoke removal is required.
  4. To operate as air mixers in the mix manifold.
正确答案：To decrease the air conditioning system pack load.　·　NG　·　来源 smartcockpit.com

151.Engine bleed air pressure is controlled by means of the bleed air valve which acts as both a shutoff and pressure regulating valve.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

152.The ram air system deflector doors:

  1. Are always extended when the gear is down.
  2. Extend during slow flight when flaps are not retracted.
  3. Modulate between fully extended and retracted through the entire flight.
  4. Extend on the ground only. ✓
正确答案：Extend on the ground only.　·　NG　·　来源 smartcockpit.com

153.A DUCT OVERHEAT light only will cause:

  1. The temperature mix valves to drive full cold. ✓
  2. The temperature mix valves to drive full hot.
  3. An automatic shutdown of the pack.
  4. A BLEED TRIP OFF.
正确答案：The temperature mix valves to drive full cold.　·　NG　·　来源 smartcockpit.com

154.The right WING-BODY OVERHEAT light is illuminated, what area is affected?

  1. The keel beam.
  2. APU bleed duct.
  3. Left aircond bay.
  4. Right engine strut. ✓
正确答案：Right engine strut.　·　NG　·　来源 smartcockpit.com

155.Where is the forward outflow valve located?

  1. Forward of the left hand air conditioning inlet. ✓
  2. Forward of the right hand air conditioning inlet.
  3. In the nose landing gear bay.
  4. There is no forward outflow valve.
正确答案：Forward of the left hand air conditioning inlet.　·　NG　·　来源 smartcockpit.com

156.Where are the wing-body overheat sensors located?

  1. Engine cowl lips, wing leading edge slats, air conditioning bays, electronic equipment bay, APU bleed duct.
  2. Engine struts, wing inboard leading edges, air conditioning bays, APU bleed duct, keel beam. ✓
  3. Engine struts, wing leading edge slats, air conditioning bays, APU duct, keel beam.
  4. Engine cowling lips, wing leading edge slats, air conditioning bays, APU compartment, keel beam.
正确答案：Engine struts, wing inboard leading edges, air conditioning bays, APU bleed duct, keel beam.　·　NG　·　来源 smartcockpit.com

157.The APU is capable of supplying bleed air for two packs on the ground, or one pack in flight.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

158.The amber OFF SCHEDULE DESCENT light illuminates. What does it indicate?

  1. The aircraft has descended before reaching the planned cruise altitude set in the altitude window. ✓
  2. The main pressurization controller is unable to maintain pressurization and has to be manually shift to manual.
  3. The pressurization standby controller has failed and will automatically shift to STANDBY.
  4. The pressurisation controller has failed and will automatically shift to manual.
正确答案：The aircraft has descended before reaching the planned cruise altitude set in the altitude window.　·　NG　·　来源 smartcockpit.com

159.The altitude warning horn is:

  1. An intermittent warning horn.
  2. A continuous warning horn.
  3. An intermittent warning horn accompanied by a Master Caution warning. ✓
  4. A continuous warning horn accompanied by a Master Caution warning.
正确答案：An intermittent warning horn accompanied by a Master Caution warning.　·　NG　·　来源 smartcockpit.com

160.The amount of fan air that is ducted through the pre-cooler is controlled by the:

  1. Thermostatic pre-cooler valve. ✓
  2. Modulating and shut-off valve.
  3. Ram air controller
正确答案：Thermostatic pre-cooler valve.　·　NG　·　来源 smartcockpit.com

161.The wing-body overheat light comes on. What is the related master caution warning?

  1. AIR COND. ✓
  2. OVHT DET.
  3. OVERHEAD.
  4. As the light is in the proximity of the pilot’s perception there is no master caution for this condition.
正确答案：AIR COND.　·　NG　·　来源 smartcockpit.com

162.Loss of airflow due to failure of an equipment cooling fan results in illumination of the related equipment cooling OFF light. Selecting the alternate fan should restore airflow and extinguish the OFF light within approximately _____.

  1. 5 seconds. ✓
  2. 20 seconds.
  3. 60 seconds.
  4. 3 minutes.
正确答案：5 seconds.　·　NG　·　来源 smartcockpit.com

163.What are the causes of an amber AUTO FAIL light?

  1. Loss of DC power or controller fault.
  2. Outflow valve control fault or excessive differential pressure.
  3. Excessive rate of cabin pressure change or high cabin altitude (above 15,800 ft).
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　NG　·　来源 smartcockpit.com

164.The recirculation fan system circulates air from the passenger cabin around thelining of the forward cargo compartment. When the overboard exhaust valve isclosed, exhaust air from the equipment cooling system is also diffused to the lining of the aft cargo compartment for additional inflight heating.

  1. True.
  2. False. ✓
正确答案：False.　·　NG　·　来源 smartcockpit.com

165.How many Trim Air Pressure Regulators are there in the Air Conditioning system?

  1. Three.
  2. Two.
  3. One. ✓
  4. There are no Trim Air Pressure Regulators, only Trim Air Modulating valves.
正确答案：One.　·　NG　·　来源 smartcockpit.com

166.When pressing Master Caution Recall the CONT CAB amber ZONE TEMP light illuminates.

  1. This indicates a failure of both the primary and standby temperature control systems.
  2. Due to failure of the primary flight deck temperature control, automatic switching to the backup system has occurred. ✓
  3. This indicates one PACK has overheated and has to be reset by pushing the trip reset button.
  4. This indicates that both temperature controllers will regulate the temperature to a preset value.
正确答案：Due to failure of the primary flight deck temperature control, automatic switching to the backup system has occurred.　·　NG　·　来源 smartcockpit.com

167.Takeoff is allowed with Pack switches in HIGH, but landing is not permitted:

  1. True.
  2. False. ✓
正确答案：False.　·　NG　·　来源 smartcockpit.com

168.An amber AUTOFAIL indication will illuminate if one or more of the following conditions occur:

  1. A single controller failure when the 'ALTN' light is also illuminated. ✓
  2. Loss of AC power for more than 15 seconds. Main outflow valve DC motor fails or if the cabin altitude exceeds 13,875 ft.
  3. The cabin altitude exceeds 13,875 ft with the loss of AC power.
  4. The cabin altitude exceeds 10,000 ft.
正确答案：A single controller failure when the 'ALTN' light is also illuminated.　·　NG　·　来源 smartcockpit.com

169.The cabin pressure controller controls cabin pressure in the following modes: AUTO (automatic) - ALT (alternate) - MAN (manual).

  1. All three modes use DC motor. ✓
  2. Automatic mode uses AC motor while the two other modes use DC motor.
  3. Automatic and alternate modes use AC motor while the manual mode use DC motor.
  4. All three modes use AC motor.
正确答案：All three modes use DC motor.　·　NG　·　来源 smartcockpit.com

170.The differential pressure of the cabin is limited by a pressure relief system - which of the following statements is correct?

  1. There are two pressure relief valves which limit differential pressure to 9.1 psi. ✓
  2. There is an outflow valve which opens when cabin pressure reaches 9.1 psi above ambient.
  3. There are two negative pressure relief valves, which limit the cabin pressure to 9.1 psi above ambient.
  4. There is a negative pressure relief valve, which limits the cabin pressure to 9.1 psi above ambient.
正确答案：There are two pressure relief valves which limit differential pressure to 9.1 psi.　·　NG　·　来源 smartcockpit.com

171.The amber DUAL BLEED light indicates apossible APU back pressure condition and thrust must be limited to IDLE.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

172.If any individual zone is switched OFF, the Temperature Selector setting will be ignored by the temperature control system.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

173.In cruise the air conditioning ram air doors are:

  1. Fully open.
  2. Fully closed.
  3. Modulate between open and closed as required for pack temperature control. ✓
  4. Modulate as a function of airspeed.
正确答案：Modulate between open and closed as required for pack temperature control.　·　NG　·　来源 smartcockpit.com

174.During descent when the descent mode is activated:

  1. Aircraft descends 0.25 psi below the selected FLT ALT. ✓
  2. Aircraft descends 0.50 below the selected FLT ALT.
  3. Aircraft descends 0.25 psi below the selected LAND ALT.
  4. Aircraft descends 0.50 psi below the selected LAND ALT.
正确答案：Aircraft descends 0.25 psi below the selected FLT ALT.　·　NG　·　来源 smartcockpit.com

175.How are the Engine Bleed Air valves powered?

  1. They are AC activated and pneumatically operated.
  2. They are DC activated and pneumatically operated. ✓
  3. They are pneumatically activated and AC operated.
  4. They are pneumatically activated and DC operated.
正确答案：They are DC activated and pneumatically operated.　·　NG　·　来源 smartcockpit.com

176.During preflight procedure the trim air switch is left in the OFF position and only one pack is selected ON for air conditioning. What is the consequence?

  1. Since the trim air is off both packs will average the temperature that satisfies the zone which requires the most cooling
  2. During single pack operation the zone temperature is controlled the same as during two pack operation.
  3. With the TRIM AIR selected OFF, the pack attempts to produce an air temperature to satisfy the average temperature demands of all three zones. ✓
  4. If a passenger cabin zone trim air, or all trim air is lost, the forward and aft zone temperature demands will be averaged for control of the left pack.
正确答案：With the TRIM AIR selected OFF, the pack attempts to produce an air temperature to satisfy the average temperature demands of all three zones.　·　NG　·　来源 smartcockpit.com

177.The DUAL BLEED light is illuminated. Engine thrust:

  1. Should be limited to 40% N1.
  2. Is unlimited. Dual bleed light is advisory only.
  3. Should be limited to idle. ✓
正确答案：Should be limited to idle.　·　NG　·　来源 smartcockpit.com

178.What is the primary source of conditioned air for the cockpit?

  1. The right pack.
  2. The left pack. ✓
  3. Both packs.
  4. Ground air.
正确答案：The left pack.　·　NG　·　来源 smartcockpit.com

179.The 9th stage modulating and shut-off valve:

  1. Will open if the 5th stage air is insufficient in maintaining proper pressure. ✓
  2. Is open at all times irrespective of 5th stage air pressure output.
  3. Will open if the APU is insufficient in maintaining proper pressure.
正确答案：Will open if the 5th stage air is insufficient in maintaining proper pressure.　·　NG　·　来源 smartcockpit.com

180.While taxiing in, the controller drives the outflow valve slowly to the full open position depressurizing the cabin.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

181.From where does the Cabin Auto Controller get its inputs.

  1. From the static ports.
  2. From the Captain’s CDU.
  3. From the ADIRUs. ✓
  4. From the EFIS control panel.
正确答案：From the ADIRUs.　·　NG　·　来源 smartcockpit.com

182.A ZONE TEMP light may be reset by the trip reset switch on the Bleed Panel.

  1. True. ✓
  2. False. This reset switch is only for PACK and BLEED TRIP OFF resets.
  3. False. This reset is only for resetting a PACK trip.
  4. False. This reset switch is for BLEED TRIP OFF only.
正确答案：True.　·　NG　·　来源 smartcockpit.com

183.A leak in the APU Bleed Air Duct will be indicated by:

  1. Right WING‐BODY OVERHEAT light illuminated.
  2. APU BLEED light illuminated on overhead panel
  3. Left WING‐BODY OVERHEAT light illuminated ✓
  4. Left and Right WING‐BODY OVERHEAT lights illuminated.
正确答案：Left WING‐BODY OVERHEAT light illuminated　·　NG　·　来源 smartcockpit.com

184.When does the amber DUAL BLEED Light illuminate?

  1. When the APU bleed valve is open.
  2. When the APU bleed valve is open and the No.1 engine bleed switch is ON. ✓
  3. When the APU bleed valve is open, the No.2 engine bleed switch is ON and the isolation valve is closed.
  4. When the APU bleed valve is open and the No.1 engine bleed switch is OFF.
正确答案：When the APU bleed valve is open and the No.1 engine bleed switch is ON.　·　NG　·　来源 smartcockpit.com

185.When operating on the Standby Pack Controls, what temperatures will the packs be producing?

  1. An average temperature for the two cabin zones. ✓
  2. The trim air modulating valves close so no pack air is provided to the two cabin zones, only re-circulated air is provided.
  3. Left pack produces 18 deg.C (64 deg.F) , right pack produces 22 deg.C (72 deg.F).
  4. The flight deck required temperature will also be provided to the passenger cabin.
正确答案：An average temperature for the two cabin zones.　·　NG　·　来源 smartcockpit.com

186.Zone Temperature Control - There are three zones: flight deck (CONT CAB), forward passenger cabin (FWD CAB) and aft passenger cabin (AFT CAB). Desired zone temperature is set by adjusting the individual Temperature Selectors. The selector range is approximately:

  1. 18 deg.C (65 deg.F) (18°C) to 30 deg.C (85 deg.F). ✓
  2. 17 deg.C (63 deg.F) (18°C) to 26 deg.C (79 deg.F).
  3. 16 deg.C (61 deg.F) (18°C) to 25 deg.C (77 deg.F).
  4. 19 deg.C (66 deg.F) (18°C) to 29 deg.C (84 deg.F).
正确答案：18 deg.C (65 deg.F) (18°C) to 30 deg.C (85 deg.F).　·　NG　·　来源 smartcockpit.com

187.Automatic switching to 'high air flow' occurs if both engine bleed air switches are OFF and the APU bleed air switch is ON, regardless of flap position, air-ground status or number of packs operating.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

188.Engine bleed air is obtained from:

  1. 4th and 9th stage of the compressor section.
  2. 5th and 9th stage of the compressor section. ✓
  3. 4th and 8th stage of the compressor section.
  4. 5th and 8th stage of the compressor section.
正确答案：5th and 9th stage of the compressor section.　·　NG　·　来源 smartcockpit.com

189.The amber DUAL BLEED Light is illuminated before starting engines. What should you do?

  1. Nothing. This is normal condition before engine start. ✓
  2. Do not start the engines, call Maintenance.
  3. Do not start the engines, check MEL.
  4. Shut down the APU and use a pneumatic ground cart for engine start.
正确答案：Nothing. This is normal condition before engine start.　·　NG　·　来源 smartcockpit.com

190.Illumination of the amber BLEED TRIP OFF light indicates what valve has automatically closed?

  1. Modulating and Shutoff valve.
  2. Engine Bleed Air valve. ✓
  3. Isolation valve.
  4. 5th valve of the compressor section.
正确答案：Engine Bleed Air valve.　·　NG　·　来源 smartcockpit.com

191.The isolation valve is:

  1. DC operated.
  2. AC operated. ✓
  3. AC controlled and pneumatically operated.
正确答案：AC operated.　·　NG　·　来源 smartcockpit.com

192.With a ground pneumatic source connected and the isolation valve switch selected to CLOSE.

  1. The pneumatic pressure would be indicated by both the left and right pointers on the pneumatic duct pressure indicator.
  2. The pneumatic pressure would be indicated by the right hand pointer on the pneumatic duct pressure indicator. ✓
  3. The pneumatic pressure would be indicated by the left hand pointer on the pneumatic duct pressure indicator.
正确答案：The pneumatic pressure would be indicated by the right hand pointer on the pneumatic duct pressure indicator.　·　NG　·　来源 smartcockpit.com

193.Water tank pressurisation in flight is normally provided by:

  1. 5th and 9th stage air from the No. 2 engine.
  2. 5th and 9th stage air from the No. 1 engine. ✓
  3. Bleed air from the APU.
正确答案：5th and 9th stage air from the No. 1 engine.　·　NG　·　来源 smartcockpit.com

194.If all zone controls and primary pack controls fail, the standby pack controlscommand the packs to produce air temperatures which will satisfy the averagetemperature demand of the two cabin zones. The trim air modulating valves will:

  1. Open.
  2. Close. ✓
正确答案：Close.　·　NG　·　来源 smartcockpit.com

195.Where do the AUTO mode controllers receive their barometric information from?

  1. The captain's pitot static system.
  2. The FO's pitot static system.
  3. The ADIRUs. ✓
  4. The two pitot static systems.
正确答案：The ADIRUs.　·　NG　·　来源 smartcockpit.com

196.What systems need pneumatic power for operation?

  1. Air Conditioning, pressurization, wing anti-ice and APU.
  2. Wing anti-ice, APU and engine starting.
  3. APU, engine starting, air Conditioning and pressurization.
  4. Engine starting, air conditioning, pressurization, wing and engine anti-ice, hydraulic reservoirs and water tank pressurization. ✓
正确答案：Engine starting, air conditioning, pressurization, wing and engine anti-ice, hydraulic reservoirs and water tank pressurization.　·　NG　·　来源 smartcockpit.com

197.The motorized Exhaust valve:

  1. Allows for increased ventilation in the smoke removal configuration.
  2. Serves as backup to the outflow valve if the outflow valve fails.
  3. Is normally open in pressurized flights above 8,000 feet.
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　NG　·　来源 smartcockpit.com

198.The air data inertial reference units (ADIRUs) provides ambient static pressure,baro corrected altitude, non corrected altitude and calibrated airspeed to bothautomatic controllers. The ADIRUs receive barometric corrections from the Captain's and First Officer's BARO reference selectors. The automatic controllers also receive:

  1. Throttle position from both stall management computers.
  2. Throttle position from both stall management computers and signals from the air-ground sensors. ✓
  3. Throttle position from both stall management computers and signals from the IRS.
  4. Throttles position and signals from the IRS.
正确答案：Throttle position from both stall management computers and signals from the air-ground sensors.　·　NG　·　来源 smartcockpit.com

199.When will the descent mode be activated in the pressurization system?

  1. When TD is reached.
  2. When retard is announced in the FMA.
  3. When descending 0.25psi below the selected flight altitude. ✓
  4. When within 15 000 feet of the landing airport.
正确答案：When descending 0.25psi below the selected flight altitude.　·　NG　·　来源 smartcockpit.com

200.What is the position of the isolation valve when the ISOLATION VALVE switch is in AUTO?

  1. The isolation valve is always open
  2. The isolation valve is always closed.
  3. The isolation valve automatically modulates between open & closed, depending on pneumatic load.
  4. Open when any Engine Bleed Air switch or Air Conditioning pack switch is positioned OFF. ✓
正确答案：Open when any Engine Bleed Air switch or Air Conditioning pack switch is positioned OFF.　·　NG　·　来源 smartcockpit.com

201.Conditioned air from the left hand pack flows directly to the flight deck from the Mix Manifold.

  1. True.
  2. False. ✓
正确答案：False.　·　NG　·　来源 smartcockpit.com

202.Deflector doors are installed forward of the ram air inlet doors to prevent slush ingestion prior to liftoff and after touchdown. Deflector doors extend when activated:

  1. Electrically by the air-ground safety sensor ✓
  2. Hydraulically when extended the main landing gear
  3. Pneumatically.
  4. Electrically in the air and pneumatically on ground
正确答案：Electrically by the air-ground safety sensor　·　NG　·　来源 smartcockpit.com

203.The ram air system provides cooling air for the:

  1. Cargo area. ✓
  2. Heat exchangers.
  3. Packs
  4. Cargo area and packs.
正确答案：Cargo area.　·　NG　·　来源 smartcockpit.com

204.The TRIP RESET switch is pushed to reset a PACK, WING-BODY OVERHEAT and BLEED TRIP OFF, it isolates the associated valve and extinguishes the alert.

  1. True.
  2. False. ✓
正确答案：False.　·　NG　·　来源 smartcockpit.com

205.If a PACK light can be reset by the TRIP RESET switch then:

  1. The fault was caused by an overheat trip. ✓
  2. The fault was caused by a controller fault.
  3. The fault was caused by an overheat trip or by a controller fault.
  4. The pack should be selected off as per the QRH.
正确答案：The fault was caused by an overheat trip.　·　NG　·　来源 smartcockpit.com

206.One PACK light illuminates on recall only. What does it indicate?

  1. There is a FOD in the RAM AIR intake forcing the pack to shut down.
  2. Both primary and secondary pack controls have failed.
  3. The primary pack control has failed and the pack is now controlled by the standby pack control ✓
  4. Both temperature control valves have shut closed in the affected pack.
正确答案：The primary pack control has failed and the pack is now controlled by the standby pack control　·　NG　·　来源 smartcockpit.com

207.Cabin altitude is normally rate-controlled by the cabin pressure controller up to a cabin altitude of ____ feet at the airplane maximum certified ceiling of ____feet.

  1. 10 000 ft and 41 000 ft.
  2. 8 000 ft and 41 000 ft. ✓
  3. 12 000 ft and 41 000 ft.
  4. 7 500 ft and 41 000 ft.
正确答案：8 000 ft and 41 000 ft.　·　NG　·　来源 smartcockpit.com

208.The recirculation fans:

  1. Reduce air conditioning pack load. ✓
  2. Are driven by a DC motor.
  3. Increase airflow at greater cabin differential pressures.
  4. Provide overheat detection downstream of the packs.
正确答案：Reduce air conditioning pack load.　·　NG　·　来源 smartcockpit.com

209.Cabin air outflow is controlled by the outflow valve and the overboard exhaustvalve. A small amount is also exhausted through toilet and galley vents, miscellaneous fixed vents, and by seal leakage.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

210.What happens when the WING BODY OVHT TEST switch is pressed?

  1. The amber WING-BODY OVERHEAT Lights illuminate. ✓
  2. The amber PACK TRIP OFF Lights illuminate.
  3. The amber BLEED TRIP OFF Lights illuminate.
  4. All statements are correct.
正确答案：The amber WING-BODY OVERHEAT Lights illuminate.　·　NG　·　来源 smartcockpit.com

211.Due to a malfunction you are required to return to the airport of departure. To avoid the OFF SCHED DESCENT warning you reset the FLT ALT. What can you expect?

  1. The system will be recalculating the pressurization for the departure airport
  2. The pressurization will increase its ventilation and possibly pressurization will be lost
  3. The automatic abort capability for the departure airport is lost ✓
  4. Nothing will happen and you will still get the OFF SCHED DESCENT warning.
正确答案：The automatic abort capability for the departure airport is lost　·　NG　·　来源 smartcockpit.com

212.If all zone and primary pack controls fail, how is cabin temperatures controlled?

  1. The cabin temperatures cannot be controlled in this situation.
  2. The last settings before the failure will be maintained until the packs are selected OFF.
  3. The standby pack controls command the packs to produce the average temperature demand of the 2 passenger cabin zones. ✓
  4. A fixed cabin temperature will be produced in this situation 24 deg.C (75 deg.F) from the left pack, and 18 deg.C (64 deg.F) from the right pack.
正确答案：The standby pack controls command the packs to produce the average temperature demand of the 2 passenger cabin zones.　·　NG　·　来源 smartcockpit.com

213.The packs produce the coolest temperature selected in any of the zones, with the other zones temperature controlled by adding hot trim air to produce the required temperature.

  1. True. ✓
  2. False.
正确答案：True.　·　NG　·　来源 smartcockpit.com

214.APU bleed air used to start NO.1 engine is:

  1. Routed via the No. 1 engine bleed air valve to the No.1 engine starter valve.
  2. Routed direct to the No.1 engine starter valve. ✓
  3. Controlled by the modulating and shut-off valve.
正确答案：Routed direct to the No.1 engine starter valve.　·　NG　·　来源 smartcockpit.com

215.The pneumatic duct pressure gauge:

  1. Is DC powered.
  2. Indicates pressure in left and right pneumatic ducts. ✓
  3. Indicates pressure available for engine anti-icing.
正确答案：Indicates pressure in left and right pneumatic ducts.　·　NG　·　来源 smartcockpit.com

216.Where are the bleed trip sensors installed?

  1. On the 9th Stage bleed air line.
  2. On the engine side of the engine bleed air valve.
  3. Sensors are positioned on both sides of the engine bleed air valve. ✓
  4. On the bleed air duct prior to the pack valve.
正确答案：Sensors are positioned on both sides of the engine bleed air valve.　·　NG　·　来源 smartcockpit.com

217.In MANUAL pressurization mode the outflow is driven by?

  1. A motor supplied from DC standby bus. ✓
  2. A motor supplied from DC bus 2.
  3. A motor supplied from DC bus 1.
  4. Requires AC power from transfer bus 1.
正确答案：A motor supplied from DC standby bus.　·　NG　·　来源 smartcockpit.com

218.Given the scenario that the expected cruise level of FL310 was selected into the FLT ALT selector during preflight, but subsequently the aircraft climbed to FL390.

  1. A differential pressure of 7.45 psi is maintained by the negative pressure relief valve.
  2. A differential pressure of 6.1 psi is maintained by the positive and the negative pressure relief valves.
  3. A differential pressure of 9.1 psi is maintained by the positive pressure relief valve. ✓
  4. A differential pressure of 8.35 psi is maintained by the forward outflow valve
正确答案：A differential pressure of 9.1 psi is maintained by the positive pressure relief valve.　·　NG　·　来源 smartcockpit.com

219.The maximum differential pressure is:

  1. 7.90 psi.
  2. 8.45 psi.
  3. 8.65 psi.
  4. 9.10 psi. ✓
正确答案：9.10 psi.　·　NG　·　来源 smartcockpit.com

220.What causes the amber PACK TRIP OFF Light to illuminate?

  1. Main distribution duct temperature has exceeded limits.
  2. Compressor outlet duct temperature has exceeded limits
  3. Turbine inlet duct temperature has exceeded limits.
  4. All statements are correct. ✓
正确答案：All statements are correct.　·　NG　·　来源 smartcockpit.com

221.Which air conditioning system will not operate unless the CAB/UTIL switch is ON?

  1. Left & right Recirculation fans ✓
  2. Temperature controls
  3. Air conditioning packs
  4. All 115V AC galley busses
正确答案：Left & right Recirculation fans　·　NG　·　来源 Chair Flight B737 Question Bank

222.What is the primary function of the recirculation fans?

  1. To provide standby air conditioning if the packs fail.
  2. Reduce engine bleed air demand and load on the packs. ✓
  3. Recirculate cabin air to allow it to be filtered to remove contaminants as it passes through the recirculation fan HEPA filters.
  4. Recirculate the air from the passenger cabin the provide heating for the forward cargo compartment
正确答案：Reduce engine bleed air demand and load on the packs.　·　NG　·　来源 Chair Flight B737 Question Bank

223.What is the result if one pack fails in-flight?

  1. The remaining pack when selected to AUTO will be capable of maintaining pressurisation up to aircraft ceiling, only if all Zone Temperature Controllers are selected to OFF.
  2. The remaining pack will not operate in HIGH flow.
  3. The remaining pack is capable of maintaining pressurisation and acceptable cabin temperatures up to 41,000 feet. ✓
  4. The remaining pack will be capable of maintaining pressurisation up to the aircraft maximum certified ceiling, and will attempt to produce an average temperature across all cabin zones.
正确答案：The remaining pack is capable of maintaining pressurisation and acceptable cabin temperatures up to 41,000 feet.　·　NG　·　来源 Chair Flight B737 Question Bank

224.Prior to discharging a Halon fire extinguisher on the flight deck, both recirculation fans must be selected to ON and at least one flight deck number 2 window must be unlocked.

  1. True
  2. False ✓
正确答案：False　·　NG　·　来源 Chair Flight B737 Question Bank
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