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60 Cards in this Set

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1. What electrical power source is required for starting the APU?
a. Aircraft battery
b. External AC
c. AC Ground service bus
a. Aircraft battery
2. The 700/800/900 APU generator will supply both Transfer buses in flight
a. True
b. False
a. True
3. What is the fuel source for starting the APU with only aircraft battery power available? (COLD aircraft)
a. Center fuel tank with crossfeed open
b. #1 fuel tank
c. #2 fuel tank with crossfeed valve OPEN
b. #1 fuel tank
4. A 737-800 aircraft is in-flight with APU running. Turning OFF the aircraft BATTERY switch will?
a. Cause the APU to shut down
b. Have no effect on the APU
a. Cause the APU to shut down
5. What are the initial indications when the APU is starting?
a. LOW OIL PRESSURE light on, full scale negative amps & volts indication on DC meters BAT position
b. LOW OIL PRESSURE light on, full scale positive amps indication of DC ammeter BAT position
c. LOW OIL PRESSURE light one, full scale negative amps indication on DC ammeter BAT position
c. LOW OIL PRESSURE light one, full scale negative amps indication on DC ammeter BAT position
6. The New Generation 737 APU generator can be used to supply both Transfer Buses up to what maximum altitude?
a. 14,000 feet if the APU is running both Transfer Buses and both packs
b. 17,000 feet if the APU is also used for one pack
c. 41,000 feet if no APU bleed air is used
c. 41,000 feet if no APU bleed air is used
7. What does an illuminated APU MAINT light indicate?
a. Oil quantity is insufficient for extended operation
b. Crew must shut down APU immediately when light comes on
c. The APU shuts down automatically after 90 seconds
a. Oil quantity is insufficient for extended operation
8. What prevents the APU electrical and bleed air loads from increasing the EGT above acceptable levels?
a. The APU automatically shuts down
b. The APU fuel control reduces fuel flow
c. The APU bleed valve modulates toward the closed position
d. The APU generator breaker automatically opens
c. The APU bleed valve modulates toward the closed position
9. What indicates the APU generator is ready for use?
a. When the APU ammeter shows a positive indication
b. When the blue APU GEN OFF BUS light illuminates
c. When the blue APU GEN OFF BUS light is out
b. When the blue APU GEN OFF BUS light illuminates
10. What is the normal procedure for using APU bleed air after starting the APU?
a. The APU bleed valve will automatically open when bleed air pressure is indicated
b. APU bleed air switch may be turned ON after one full minute of APU operation
c. APU bleed air switch may be turned ON as soon as the APU GEN OFF BUS light comes on
b. APU bleed air switch may be turned ON after one full minute of APU operation
11. What causes an automatic shutdown of the APU?
a. APU EGT over temperature
b. Fire warning
c. High oil pressure
b. Fire warning
12. What causes an automatic shutdown of the APU in flight? (NG 700)
a. BAT switch placed to OFF
b. High oil pressure
c. High EGT
a. BAT switch placed to OFF
13. Which of the following causes an automatic shutdown of the APU in flight or on the ground?
a. EGT overtemperature
b. High oil pressure
c. Fire warning
c. Fire warning
14. Which sequence of events should be accomplished for normal shutdown of the APU when “securing” the airplane?
a. Operate for 20 seconds with no pneumatic load, then place APU and battery switches to OFF
b. Operate for 30 seconds with no pneumatic load, then place APU switch to OFF
c. Operate for one minute with no pneumatic load, place APU switch to OFF, wait 20 seconds, then battery switch OFF
c. Operate for one minute with no pneumatic load, place APU switch to OFF, wait 20 seconds, then battery switch OFF
15. Which of the following set of conditions causes the APU OVERSPEED light to illuminate?
a. APU start aborted
b. APU speed sensing has failed and the APU is shutdown
c. APU rpm limit exceeded
d. All answers are correct
d. All answers are correct
16. A normal APU start cycle can take as long as:
a. 60 seconds
b. 90 seconds
c. 135 seconds
c. 135 seconds
17. Inflight, with one engine generator inoperative, the APU can supply electrical power to: (300/500)
a. One bus and one pack up to 17,000 feet
b. One bus up to 35,000 feet
c. One bus up to 37,000 feet
d. Both busses if the APU bleed valve is closed
b. One bus up to 35,000 feet
18. A 737-700 aircraft is parked with APU running. Turning the APU control switch to OFF __________.
a. Closes the APU bleed valve
b. Trips the APU generator field relay
c. Shuts down the APU after 60 seconds
d. All answers are correct
d. All answers are correct
19. An illuminated APU “GEN OFF BUS” light indicates:
a. The APU is powering bus #1
b. The APU is powering bus #2
c. The APU is powering both bus #1 and #2
d. The APU is at operating speed
d. The APU is at operating speed
20. Turning the battery switch to OFF inflight, will cause the APU to shut down. (300/500)
a. True
b. False
b. False
21. Minimum batter voltage for APU start is:
a. 18 volts
b. 22 volts
c. 23 volts
d. 24 volts
c. 23 volts
22. APU starter engagement may first be observed by:
a. APU “oil pressure low” light illumination and extinguishing
b. APU “gen off bus” light extinguishing
c. AC frequency meter with AC meters selector in the INV position
d. Full scale left deflection of DC ammeter with the BAT position selected
d. Full scale left deflection of DC ammeter with the BAT position selected
23. After APU shutdown, the battery switch should remain on for 20 seconds after the APU switch has been placed to OFF.
a. True
b. False
a. True
24. What causes an APU OVERSPEED annunciator light to illuminate?
a. Overspeed shutdown protection is inoperative during APU shutdown
b. APU automatic start sequence is aborted
c. APU rpm exceeds limits
d. All of these answers are correct
d. All of these answers are correct
25. An illuminated APU DET INOP light when no fire warning test is being performed:
a. Requires the APU to be shut down if operating because the detectors is inop
b. Causes the APU to shutdown automatically
c. Indicates that the faulty detector has been deselected, and that all APU fire warning capability is functional
a. Requires the APU to be shut down if operating because the detectors is inop
26. After an inflight APU start, the APU will supply ___________. (300/500)
a. Pneumatic load only up to 17,000 feet
b. Pneumatic and electric power up to 17,000 feet
c. Both generator busses inflight up to 37,000 feet
a. Pneumatic load only up to 17,000 feet
27. The maximum allowable EGT for the APU is ______. (300/500)
a. 610 degrees C max continuous, 677 degrees C maximum
b. 700 degrees C maximum start, 670 degrees C max continuous
c. 725 degrees C start, 700 degrees C max continuous
d. 760 degrees C maximum, 700 degrees C max continuous
d. 760 degrees C maximum, 700 degrees C max continuous
28. After aborting an APU start, how soon may another start be attempted?
a. Immediately
b. After 4 minutes
c. After 4 minutes on the ground, after 2 minutes in flight
d. Below 300 degrees C EGT
b. After 4 minutes
29. Successful APU starts are not assured above ___________.
a. FL 250
b. FL 280
c. FL 310
d. FL 350
a. FL 250
30. What is the primary function of the Main Engine Control?
a. Direct electronic control of N1 speed
b. Electronic override of the PMS
c. Hydro-mechanical control of fuel
c. Hydro-mechanical control of fuel
31. What is the automatic function of the PMC during a climb?
a. Maintain initial N1 climb thrust throughout climb
b. Maintain constant EGT during climbs
c. Maintain constant fuel flow at all altitudes
a. Maintain initial N1 climb thrust throughout climb
32. When is Engine speed commanded to LOW IDLE?
a. Flaps extend to 15 or more
b. On the ground, four seconds after touchdown
c. Cowl anti-ice turned on
b. On the ground, four seconds after touchdown
33. How is the main fuel shutoff valve at the engine pylon operated?
a. Mechanical control by the start lever and engine fire switch
b. Fuel boost pump pressure control initiated by the engine start lever and fire switch
c. Electrical control by the engine start lever and fire switch
c. Electrical control by the engine start lever and fire switch
34. A dim FUEL VALVE CLOSED light indicates?
a. Engine fuel control shutoff valve (MEC valve) is closed
b. Main fuel shutoff valve at the engine pylon is closed
c. Main fuel shutoff valve at the engine pylon position disagreement
b. Main fuel shutoff valve at the engine pylon is closed
35. What does an illuminated fuel FILTER BYPASS light indicate?
a. First stage engine driven fuel pump failure
b. Impending bypass of the engine fuel filter
c. Impending fuel bypass through the servo fuel heater
b. Impending bypass of the engine fuel filter
36. How is the Main Engine control (MEC) fuel shutoff valve operated? (This valve is at the engine fuel control)
a. Mechanically by the engine start lever
b. Electrically by the engine fire warning switch
c. 1st stage engine fuel pump pressure and start switch
a. Mechanically by the engine start lever
37. What does the engine oil pressure indicator show?
a. Normal regulated pressure from 40 55 psi
b. Regulated pressure for all flight conditions
c. Unregulated pressure as a function of N2 speed
c. Unregulated pressure as a function of N2 speed
38. What is indicated when the OIL FILTER BYPASS light illuminates?
a. The scavenge oil filter is contaminated
b. The fuel/oil heat exchanger is contaminated
c. The oil is bypassing the fuel/oil heat exchanger
a. The scavenge oil filter is contaminated
39. The engine oil temperature indicator shows oil temperature coming out of the engine prior to the oil cooler
a. True
b. False
a. True
40. During engine start, the start switch disengages at N2. (500)
a. 25%
b. 46%
c. 50%
d. 56%
b. 46%
41. The _______shows the current mode of the N1 limit computed by the FMC.
a. PMI
b. Thrust Rating Indicator
c. Thrust Rating Computer
d. Thrust Mode Annunciator
d. Thrust Mode Annunciator
42. The engine accessory components are driven by
a. The N1 spool
b. The N2 spool
c. Both N1 & N2 spools
d. The Constant Speed Drive
b. The N2 spool
43. With the engine at normal operating temperature and idle, the oil PRESSURE must be ___________.
a. In the green band
b. 55 psi or more
c. Above the red radial
c. Above the red radial
44. Engine fan air cools _______. (300/500)
a. The Trim Air
b. The air conditioning pack
c. The CSD/Generator
d. The air conditioning heat exchanger
c. The CSD/Generator
45. With the engine at climb N1 limit power, the stage pneumatic bleed provides bleed air for the pneumatic system.
a. 5th
b. 6th
c. 8th
d. 9th
a. 5th
46. The power to move the engine thrust reversers is ______.
a. Pneumatic
b. Electric
c. Hydraulic
c. Hydraulic
47. Engine oil is cooled by ___________.
a. Engine fan air
b. Engine fuel flow
c. The left pack
d. Ram air
b. Engine fuel flow
48. Reverse thrust operation is permitted for
a. Power-back
b. Slowing the aircraft during the descent
c. Ground use only
c. Ground use only
49. What is maximum engine N1 limit?
a. 106%
b. 105%
c. 100%
a. 106%
50. What is maximum engine N2?
a. 106%
b. 105%
c. 100%
b. 105%
51. What is maximum takeoff EGT?
a. 930 C
b. 900C
c. 760 C
a. 930 C
52. What is maximum continuous engine EGT?
a. Red line
b. 895C
c. 890C
b. 895C
53. What is maximum starting EGT for the aircraft engines?
a. 760 C
b. 725C
c. 710 C
b. 725C
54. What is minimum oil pressure for continued engine operation?
a. 13 psi
b. 20 psi
c. 45 psi
d. 55 psi
a. 13 psi
55. An engine must be shut down if the oil temperature exceeds __________.
a. 165 C
b. 160 C
c. 125 C
a. 165 C
56. Which is the correct PMC switch configuration for takeoff?
a. Both must be ON or both INOP (OFF)
b. One may be INOP (OFF)
c. #1 must be operative, but #2 may be INOP
a. Both must be ON or both INOP (OFF)
57. Condition: BAT Volts: 23V; BATT SW: ON; APU SW placed to START; no DC ammeter deflection is observed during a one minute period. What should the pilot do?
a. Place the APU switch to OFF for 20 seconds, then try again
b. Place the APU switch to OFF for 120 seconds, then try again
c. Call Maintenance
d. Leave the aircraft and head to the bar for a drink!
a. Place the APU switch to OFF for 20 seconds, then try again
58. What causes an automatic shutdown of the APU inflight?
a. LOW OIL PRESS light on
a. HIGH OIL PRESS light on
a. LOW OIL TEMP light on
a. MAINT light on
a. LOW OIL PRESS light on
59. The New Generation aircraft APU generator will power both transfer buses inflight.
a. True
b. False
c. Don't have a clue
d. Don't care - as long as I'm fying a NG and not a 500!
a. a. True
These Cards are not verified accurate. Please, If you find a mistake, email: craigB737@icloud.com
Check back for future revisions!