Volume 5. Jet Engine Troubleshooting, Operation, Testing, And Damage Analysis

97 Questions | Total Attempts: 683

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Military Quizzes & Trivia

Military questions


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

      Discuss problem with other journeymen in the shop

    • B. 

      Check each part of every system

    • C. 

      Examine the most complex unit

    • D. 

      Observe gauge indications

  • 2. 
    All of the options listed below are proper troubleshooting practices except
    • A. 

      Checking the applicable trouble areas

    • B. 

      Understanding the fucnction of each engine unit

    • C. 

      Performing easy checks, then going to more difficult checks

    • D. 

      Inspecting other areas after isolating the trouble between points

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

      Fix-it diagrams

    • B. 

      Power plant charts

    • C. 

      Mechanical drawings

    • D. 

      Troubleshooting charts

  • 4. 
    To become an expert troubleshooter, you must
    • A. 

      Be a 7-level

    • B. 

      Have at least 5 years experience

    • C. 

      Attend college courses in troubleshootin techniques

    • D. 

      Understand th function of each unit within each system

  • 5. 
    The F100-PW-220 engine monitoring system component that acquires fault data from the digital electonic 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)

  • 6. 
    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

  • 7. 
    Most engine montioring 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

  • 8. 
    Which jet engine temperature is not measured?
    • A. 

      Exhaust gas

    • B. 

      Turbine inlet

    • C. 

      Combustion inlet

    • D. 

      Fan turbine inlet

  • 9. 
    A typical jet engine exhaust gas temperaure (EGT) indicating system contains thermocouples, leads, an indicator, and
    • A. 

      A resistor

    • B. 

      A turbine inlet

    • C. 

      A control valve

    • D. 

      An exhaust duct

  • 10. 
    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 adn a fuel-flow indicator

    • D. 

      Control valve and a fuel-flow transcriber

  • 11. 
    The fuel system component of a jet engine that operates by using water wheel concept is the
    • A. 

      Fuel-flow generator

    • B. 

      Fuel-flow indicator

    • C. 

      Fuel-flow transmitter

    • D. 

      Fuel remaining counter

  • 12. 
    The fuel-flow indicator indicates the rate of fuel-flow as
    • A. 

      Pounds per hour

    • B. 

      Gallons per hour

    • C. 

      Pounds per minute

    • D. 

      Gallons per second

  • 13. 
    Two units that work together to indicate that the oil system is operating correctly are the oil pressure
    • A. 

      Transmitter and indicator

    • B. 

      Relief valve and indicator

    • C. 

      Relief valve and transmitter

    • D. 

      Synchronous unit and indicator

  • 14. 
    The oil pressure indicator receives an electrical signal from the
    • A. 

      Gyro

    • B. 

      Transmitter

    • C. 

      Hydraulic unit

    • D. 

      Synchronous unit

  • 15. 
    The two primary units of the tachometer indicating system are the tachometer generator and tachometer
    • A. 

      Indicator

    • B. 

      Fuse panel

    • C. 

      Transformer

    • D. 

      Thermocouple

  • 16. 
    The N2 tachometer generator is usually driven from the tachometer drive located on the
    • A. 

      Engine accessory section

    • B. 

      Engine turbine section

    • C. 

      Combustion case

    • D. 

      Fuel control

  • 17. 
    The tachometer indicator is
    • A. 

      An electric direct-drive type instrument

    • B. 

      An electric-magnetic-drag-type instrument

    • C. 

      A mechanical direct-drive-type instument

    • D. 

      A mechanical-magnetic-drag-type instrument

  • 18. 
    The exhaust nozzle position indicating system found on engines with afterburners is important because it
    • A. 

      Helps the pilot determine engine power

    • B. 

      Helps the pilot determine fuel consumption

    • C. 

      Gives the pilot indications of electrical failures

    • D. 

      Aids the pilot in selection of proper altitude levels

  • 19. 
    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

  • 20. 
    One type of overheat detector unit used on aircraft engines consists of a hollow stailess-steel tube that covers
    • A. 

      One gold contact

    • B. 

      Two silver contacts

    • C. 

      Three bronze contacts

    • D. 

      Four copper contacts

  • 21. 
    Whit is used to indicate the amount of thrust a dual-compressor engine is producing?
    • A. 

      Engine pressure ratio (EPR)

    • B. 

      Exhaust gas temperature (EGT)

    • C. 

      Revolutions per minute (RPM)

    • D. 

      Turbine inlet temperature (TIT)

  • 22. 
    The pressures used in the operationof the engine pressure ration (EPR) system are the
    • A. 

      Engine inlet total pressure and exhaust total pressure

    • B. 

      Exhaust total pressure and turbine inlet total pressure

    • C. 

      Inlet total pressure and compressor discharge total pressure

    • D. 

      Compressor discharge total pressure and trubine inlet total pressure

  • 23. 
    Inlet pressure (Pt2) is transmitted from its sensing point
    • A. 

      Electrically

    • B. 

      Mechanically

    • C. 

      Hydraulically

    • D. 

      Through tubing

  • 24. 
    The test cell exhaust gas temperature (EGT) selector allows selection of
    • A. 

      The EGT parameter for transit speeds

    • B. 

      Accuracy check switch during adjustment

    • C. 

      The EGT indicator to be read in digital or analog

    • D. 

      Individual thermocouple inputs or average of these inputs

  • 25. 
    When properly adjusted, the accuracy of the text cell N1 and N2 speed indicator will be within
    • A. 

      1 revolutions per minute (RPM)

    • B. 

      2 RPM

    • C. 

      3 RPM

    • D. 

      4 RPM