2A651 Edition2 Volume 5

95 Questions | Total Attempts: 65

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Equation Quizzes & Trivia

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

      Examine most complex unit.

    • B. 

      Observe gauge indications.

    • C. 

      Check each part of every system.

    • D. 

      Discuss problem with other journeymen in the shop.

  • 2. 
    (801) 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 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. 
    (801) 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. 
    (801) To become an 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. 
    (802) 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. 
    (802) The F100-PW–220 engine monitoring system component that acquires fault data from the digital electronic engine 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. 
    (802) Which component in 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. 

      Mach number (Mn) test system.

    • D. 

      Supervisory control system (SCS).

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

      Trips an engine no-go flag.

    • B. 

      Turns on cockpit lights to warn the pilot.

    • C. 

      Trips an engine monitoring unit (EMS) maintenance flag.

    • D. 

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

  • 9. 
    (803) To be considered effective tools for aviators, 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. 
    (803) 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 the test cell.

    • C. 

      The meanings of the instrument readings.

    • D. 

      What tools are required for maintenance.

  • 11. 
    (803) Most engine monitoring gauges 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. 
    (804) Which jet engine temperature is not measured?
    • A. 

      Exhaust gas.

    • B. 

      Turbine inlet.

    • C. 

      Combustion inlet.

    • D. 

      Fan turbine inlet.

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

      Resistor.

    • B. 

      Turbine inlet.

    • C. 

      Control valve

    • D. 

      Exhaust duct.

  • 14. 
    (804) 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. 
    (805) The engine fuel-flow indicating system of most jet powered aircraft contains a fuel-flow
    • A. 

      Transmitter and a float valve.

    • B. 

      Control valve and a float valve.

    • C. 

      Transmitter and a fuel-flow indicator.

    • D. 

      Control valve and a fuel-flow transcriber.

  • 16. 
    (805) 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. 
    (806) 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. 
    (806) An oil pressure transmitter contains a mechanical section and
    • A. 

      A hydraulic unit

    • B. 

      An electrical unit.

    • C. 

      A pnuedraulic unit.

    • D. 

      A synchronous unit.

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

      Gyro

    • B. 

      Transmitter.

    • C. 

      Hydraulic unit.

    • D. 

      Synchronous unit.

  • 20. 
    (807) 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. 
    (807) The tachometer indicator is
    • A. 

      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. 
    (807) The frequency of the tachometer generator is proportional to the
    • A. 

      Engine speed.

    • B. 

      Transformer speed.

    • C. 

      Speed of the electrical magnet.

    • D. 

      Speed of the alternating magnet.

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

      Rheostat.

    • B. 

      Rectifier.

    • C. 

      Transducer.

    • D. 

      Transformer.

  • 24. 
    (809) 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. 
    (810) What is used to indicate the amount of thrust a dual-compressor engine is producing?
    • A. 

      Engine pressure ratio (EPR).

    • B. 

      Revolutions per minute (rpm).

    • C. 

      Exhaust gas temperature (EGT).

    • D. 

      Turbine inlet temperature (TIT).

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