2A651 Volume 5 Aircraft Troubleshooting

95 Questions | Total Attempts: 65

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Computer Quizzes & Trivia

Questions and Answers
  • 1. 
    After reviewing the aircraft/engine forms, where should you begin troubleshooting?
    • A. 

      Examine most complex unit.

    • B. 

      Observe guage indications.

    • C. 

      Check each part of every system

    • D. 

      Discuss problem with other journeyman in the shop.

  • 2. 
    If you encounter engine trouble where more than one unit is at fault, you would first
    • A. 

      Go back and check engine forms again

    • B. 

      Replace all if the units suspected to be at fault

    • C. 

      Try to repair the more complex unit on the spot

    • D. 

      Examine the unit that requires the least amount of time to replace

  • 3. 
    Aircraft power plant and engine intermediate maintenance technical orders (TO) contain information on troubleshooting. This information is presented in the form of
    • A. 

      Troubleshooting charts.

    • B. 

      Mechanical drawings

    • C. 

      Power plant charts

    • D. 

      Fix-it diagrams

  • 4. 
    To becmoe and expert troubleshooter, you must
    • A. 

      Be a 7 level

    • B. 

      Have at least 5 years experience

    • C. 

      Attend college courses in troubleshooting techniques

    • D. 

      Understand the function of each unit within each system

  • 5. 
    What system is used on most modern jet engines to gather and record engine data?
    • A. 

      Engine start system (ESS)

    • B. 

      Engine monitoring system (EMS)

    • C. 

      Supervisory control system (SCS)

    • D. 

      Supervisory monitoring system (SMS)

  • 6. 
    The F100-PW-220 engine monitoring system componenent that acquires fault data from the digital electronic control (DEEC) and logs the faults with the time of their occurrence is the
    • A. 

      Data collection unit (DCU)

    • B. 

      Ground station unit (GSU)

    • C. 

      Engine analyzer unit (EAU)

    • D. 

      Engine diagnostic unit (EDU)

  • 7. 
    Which component in the F100-PW-220 engine monitoring system transfers information from the engine diagnostic unit (EDU) to the ground station unit (GSU)?
    • A. 

      Data collection unit (DCU)

    • B. 

      Engine analyzer unit (EAU)

    • C. 

      Match number (Mn) test system

    • D. 

      Supervisory control system (SCS)

  • 8. 
    If there's a problem in the F100-PW-220 aircraft engine, the digital electronic engine control (DEEC)
    • A. 

      Trips and engine no-go flag

    • B. 

      Turns on cokcpit lights to warn the pilot

    • C. 

      Trips and engine monitoring unit (EMS) maintenance flag

    • D. 

      Accommodates the fault and sends the fault code to the engine diagnostic unit (EDU)

  • 9. 
    To be considered effective tools for avaiators, aircraft instruments must be light weight, easy to read, and
    • A. 

      Small in size

    • B. 

      Analog readout

    • C. 

      Digital readout

    • D. 

      Cheap to manufacture

  • 10. 
    An understanding of the operating principles of engine instruments will help you decide
    • A. 

      If an engine should be removed from an aircraft

    • B. 

      If the engine should be sent to test cell

    • C. 

      The meanings of the intrument readings

    • D. 

      What tools are required for maintenance

  • 11. 
    Most engine monitoring guages and instruments require some type of
    • A. 

      Electrical valve to the indicator

    • B. 

      Metal tubing for electron flow

    • C. 

      Radio frequency transmitter

    • D. 

      Transmitter and indicator

  • 12. 
    Which jet engine temperature is not measured?
    • A. 

      Exhaust gas

    • B. 

      Turbine inlet

    • C. 

      Combustion inlet

    • D. 

      Fan turbine inlet

  • 13. 
    A typical jet engine exhaust gas temperature (EGT) indicating system contains thermocouples, leads, and indicator, and
    • A. 

      Resistor

    • B. 

      Turbine inlet

    • C. 

      Control valve

    • D. 

      Exhaust duct

  • 14. 
    Which metals are used in the thermocouples of the exhaust gas temperature (EGT) indicating system?
    • A. 

      Steel and iron

    • B. 

      Steel and alumel

    • C. 

      Iron and chromel

    • D. 

      Alumel and chromel

  • 15. 
    The engine fuel-flow indicating system of most jet powered aircraft contains a fuel-flow
    • A. 

      Transmitter

    • B. 

      Control valve and a float valve

    • C. 

      Transmitter and a fuel-flow indicator

    • D. 

      Control valve and a fuel-flow transcriber

  • 16. 
    The fuel system component of a jet engine that operates by using a water wheel concept is the fuel
    • A. 

      Flow indicator

    • B. 

      Flow generator

    • C. 

      Flow transmitter

    • D. 

      Remaining counter

  • 17. 
    Two units that work together to indicate the oil system is operating correctly are the oil pressure
    • A. 

      Relief valve and indicator

    • B. 

      Transmitter and indicator

    • C. 

      Relief valve and transmitter

    • D. 

      Synchronous unit and indicator

  • 18. 
    An oil pressure transmitter contains a mechanical section and
    • A. 

      Hydraulic unit

    • B. 

      An electrical unit

    • C. 

      A pnuedraulic unit

    • D. 

      A synchronous unit

  • 19. 
    The oil pressure indicator receives an electrical signal from the
    • A. 

      Gyro

    • B. 

      Transmitter

    • C. 

      Hydraulic unit

    • D. 

      Synchronous unit

  • 20. 
    The two primary units of the tachometer indicating system are the tachometer generator and tachometer
    • A. 

      Indicator

    • B. 

      Fuse panel

    • C. 

      Transformer

    • D. 

      Thermocouple

  • 21. 
    The tachometer indicator is
    • A. 

      Mechanical magnetic-drag-type instrument

    • B. 

      An electric magnetic-drag-type instrument

    • C. 

      A mechanical direct-drive-type instrument

    • D. 

      An electric direct-drive type instrument

  • 22. 
    The frequency of the tachometer generator generator is proportional to the
    • A. 

      Engine speed

    • B. 

      Transformer speed

    • C. 

      Speed of the electrical magnet

    • D. 

      Speed of the alternating magnet

  • 23. 
    On engines with afterburners, the position of the exhaust nozzle is converted into an electrical signal by a
    • A. 

      Rheostat

    • B. 

      Recitifier

    • C. 

      Transducer

    • D. 

      Transformer

  • 24. 
    During an operational check of the fire warning system, you press
    • A. 

      Only the TEST switch

    • B. 

      Both TEST and NORMAL switches

    • C. 

      Only the TEST WARNING ON switch

    • D. 

      Both TEST ON and TEST OFF switches

  • 25. 
    What is used to indicate the amount of thrust a dual-compressor engine is producing?
    • A. 

      Enging pressure ratio (EPR)

    • B. 

      Revolutions per minute (RPM)

    • C. 

      Exhaust gas temperature (EGT)

    • D. 

      Turbine inlet temperature (TIT)

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