737 Engines And APU

26 Questions | Total Attempts: 65

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737 Engines And APU - Quiz

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Questions and Answers
  • 1. 
    N1 is the ______ pressure compressor and is a primary engine indication
    • A. 

      Low

    • B. 

      Bypass Air

    • C. 

      High

    • D. 

      Turbine outlet

  • 2. 
    N2 is the ________ pressure compressor and is a secondary engine indication 
    • A. 

      Low

    • B. 

      Bypass air

    • C. 

      Turbine outlet

    • D. 

      High 

  • 3. 
    The start levers positions are_______
    • A. 

      Idle and start

    • B. 

      Idle and cutoff 

    • C. 

      Start and cutoff 

    • D. 

      On and off

  • 4. 
    Reverse thrust cannot be selected unless________
    • A. 

      There is a weight-on-wheels signal

    • B. 

      The reverse Idle position is armed

    • C. 

      The forward thrust lever is at Idle

    • D. 

      There is a weight-on-wheels signal and wheel spin up 

  • 5. 
    Positioning an engine Start Lever to Cutoff closes the _________
    • A. 

      Respective spar fuel shutoff valve only

    • B. 

      Respective engine fuel shutoff valve only

    • C. 

      Respective spar and engine fuel shutoff valves

    • D. 

      Spar and engine fuel shutoff valves for both engines

  • 6. 
    The________compares commanded N1 to actual N1 and adjusts fuel flow to achieve commanded N1
    • A. 

      Hydromechanical unit (HMU)

    • B. 

      Power management computer (PMC)

    • C. 

      Electronic engine control (EEC)

    • D. 

      Flight management computer (FMC)

  • 7. 
    The electronic engine control (EEC) in either normal or Alternate mode does not provide_______ protection
    • A. 

      High engine vibration

    • B. 

      N1 overspeed 

    • C. 

      EGT redline

    • D. 

      N2 overspeed

  • 8. 
    In normal mode the electronic engine control (EEC) uses________conditions and________to calculate N1 thrust ratings
    • A. 

      Sense flight/HMU demand

    • B. 

      Last valid flight/HMU demand

    • C. 

      Store flight/beeps air demand 

    • D. 

      Sense flight/Bleed air demand

  • 9. 
    If an engine EEC switch has both the ON (white) and ALTN (amber) displays illuminated. The engine is operating in ________mode
    • A. 

      Soft alternate

    • B. 

      Hard alternate 

    • C. 

      Either soft or hard alternate

    • D. 

      Single channel ALTN

  • 10. 
    If an Engine control (amber) light illuminates_______
    • A. 

      Select ALTN for engine #1 EEC

    • B. 

      There is a non-dispatchable fault in the engine control

    • C. 

      The autothrottle (A/T) is inoperative and you must control the engine manually 

    • D. 

      Avoid icing conditions

  • 11. 
    The thrust mode display indicates R-TO (Green). What mode is active?
    • A. 

      Reduce takeoff thrust

    • B. 

      Takeoff thrust dearth (no assumed temp) reduced takeoff

    • C. 

      Assumed temperature (not derate) reduce takeoff 

    • D. 

      Reject takeoff

  • 12. 
    What causes the Eng Fail Alert (amber) on the EGT indicator
    • A. 

      The start lever has been moved to cutoff

    • B. 

      N2 drops below 50% and start lever in Idle

    • C. 

      N1 drops below 50% and start lever in Idle

    • D. 

      A non-dispatchable fault in Engine control system (EEC)

  • 13. 
    On the ground after engine shutdown a red box around the EGT readout indicates
    • A. 

      An in flight exceedance has occurred 

    • B. 

      Nothing. This is a normal indication 

    • C. 

      An in flight underspeed condition existed

    • D. 

      An in flight Engine Fail ( ENG FAIL) condition was corrected

  • 14. 
    Reverse video displayed on the Engine Vibration readout indicates
    • A. 

      High engine vibration level

    • B. 

      Normal engine vibration level

    • C. 

      An engine shutdown 

    • D. 

      The night brightness mode

  • 15. 
    During a normal preflight power ON; start levers in cutoff the ENG Valve Closed lights (blue) and Spar Valve Closed lights (blue) should be_________
    • A. 

      Not illuminated which indicates the valves are closed

    • B. 

      Illuminated bright which indicates the valves are open

    • C. 

      Illuminated dim which indicates the valves are closed

    • D. 

      Illuminated bright which indicates the valves are inoperative

  • 16. 
    An illuminated Filter Bypass light (amber) indicates 
    • A. 

      A fuel pressure sensor failure in the first stage of the HMU

    • B. 

      An impending fuel filter bypass due to a contaminated filter

    • C. 

      An impending fuel filter bypass due to a switch in EEC logic

    • D. 

      A fuel pressure sensor failure in the second stage of the HMU

  • 17. 
    What is the indication if the engine oil pressure drops below redline during takeoff roll (>80kts)
    • A. 

      The indication is a steady Low Oil Pressure (amber) light

    • B. 

      The indication is a blinking Low Oil Pressure (amber) light

    • C. 

      No indication because all alerts inhibited on the ground

    • D. 

      The indication is a blinking Low Oil Pressure (amber) light for ten seconds and then a steady blinking Low Oil Pressure (amber) light

  • 18. 
    The ignition Select switch in the IGN R position selects
    • A. 

      The right igniter for use on both engines

    • B. 

      Both igniters for use on the right

    • C. 

      The right igniter for use on the right engine

    • D. 

      The right igniter for both engines and APU

  • 19. 
    In flight, the engine start switch in CONT provides ignition_________with the engine start lever in Idle. ( Select all correct answers)
    • A. 

      To both igniters when N2 is below Idle

    • B. 

      To selected (L or R) igniters when N2 is below idle

    • C. 

      To selected igniters when the engine is operating normally———

    • D. 

      To both igniters when the engine is operating normally 

  • 20. 
    The engine start switch set to FLT provides ignition to_______ with the engine start lever idle
    • A. 

      Both igniters

    • B. 

      Selected (L or R) igniters if N2 is below Idle 

    • C. 

      Selected (L or R) igniters

    • D. 

      Both igniters (only if ENG TAI is selected ON)

  • 21. 
    A steady Start Valve Open (amber) light indicates the________
    • A. 

      Star switch is in GRD

    • B. 

      Start Valve is open and supplying air to the starter

    • C. 

      Start valve is open irrespective of whether it is supplying air to the starter

    • D. 

      Starter valve has opened uncommanded by start switch

  • 22. 
    The reverser (amber) light on the AFT overhead panel illuminated for more than 12seconds triggers the master Caution ENG annunciation to indicate the thrust reverser 
    • A. 

      Is fully deployed 

    • B. 

      Is fully deployed but the isolation valve remained open

    • C. 

      Sleeves are unlocked 

    • D. 

      Has a malfuction

  • 23. 
    During normal APU operations the APU will automatically shutdown for all of the following lights escept________
    • A. 

      Fault

    • B. 

      Maint

    • C. 

      Overspeed

    • D. 

      Low Oi Pressure

  • 24. 
    After the APU reaches 95% RPM if the Low Oil Pressure (amber) light is still illuminated 
    • A. 

      The APU initiates an automatic shutdown

    • B. 

      The light extinguishes when the APU begins powering the transfer bus

    • C. 

      It is normal during the start sequence and remains ON until APU Oil Pressure is normal 

    • D. 

      It indicates there is enough oil in the APU for 30-50 hours of operation 

  • 25. 
    In EEC hard alternate mode thrust is________
    • A. 

      Equal to or greater than normal mode thrust the same lever position

    • B. 

      Less than normal mode thrust for the same lever position

    • C. 

      Never more then a normal mode thrust for the same lever position 

    • D. 

      Normally equal to normal mode thrust for the same lever position below ISA

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