Aerospace Propulsion CDC Quiz

29 Questions

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Aerospace Propulsion CDC Quiz

When you are certified at aerospace propulsion you are tasked with Interprets and implements directives and publications pertaining to maintenance functions, including environmentally safe maintenance practices. Take up this quiz and test what else you should know to get the certification and become a professional. Wish you all the best!


Questions and Answers
  • 1. 
    To release the internal air pressure in a shipping container/module, you must remove the
    • A. 

      Parting surface nuts

    • B. 

      Parting surface bolts

    • C. 

      Filler valve on the side of the container

    • D. 

      Filler valve on the front of the container

  • 2. 
    To prepare the engine fuel system for service after depreservation, you must flush the system with
    • A. 

      Oil

    • B. 

      Fuel

    • C. 

      PD-680

    • D. 

      Calibration fluid

  • 3. 
    Which TO covers the disposition of engines removed from aircraft involved in mishaps?
    • A. 

      00-20-4

    • B. 

      2J-1-14

    • C. 

      2J-1-19

    • D. 

      33-1-37-1

  • 4. 
    When metal is attacked by chemical corrosion, it will start
    • A. 

      Deep within the metal

    • B. 

      On the surface of the metal

    • C. 

      Throughout the metal all at once

    • D. 

      Just under the surface of the metal

  • 5. 
    Which section of a jet engine introduces and burns fuel?
    • A. 

      Turbine

    • B. 

      Diffuser

    • C. 

      Compressor

    • D. 

      Combustion

  • 6. 
    The heat content per pound of kerosene is how many Btu's?
    • A. 

      10,500

    • B. 

      15,000

    • C. 

      18,500

    • D. 

      40,000

  • 7. 
    Which facet of engine design helps prevent igniter plug fouling?
    • A. 

      Gold plating on the plug

    • B. 

      Split electrode on the plug

    • C. 

      Ceramic coating on the plug

    • D. 

      Directing air around the plug

  • 8. 
    A constructional feature of the centrifugal compressor is that the impeller
    • A. 

      Has two matching plates

    • B. 

      Has a lightweight design

    • C. 

      Is forged as a single unit

    • D. 

      Is constructed in rows of blades and stators

  • 9. 
    Stationary vanes positioned between rotor discs in a compressor are used to
    • A. 

      Direct air and increase pressure

    • B. 

      Direct hot gases rearward

    • C. 

      Increase backup pressure

    • D. 

      Prolong compressor life

  • 10. 
    What is the most common type of fuel nozzle system?
    • A. 

      Pressure-atomizing

    • B. 

      Fuel-blasting

    • C. 

      Fuel ejector

    • D. 

      Fuel tube

  • 11. 
    Three types of turbine and vane assemblies used in jet engines are impulse, reaction, and
    • A. 

      Fir tree

    • B. 

      Shrouded

    • C. 

      Unshrouded

    • D. 

      Reaction-impulse

  • 12. 
    The parts on a can-annular combustion section must be removed in a specific order because of the
    • A. 

      Fuel nozzle

    • B. 

      Transition liner

    • C. 

      Combustion chamber outer case

    • D. 

      Combustion chamber crossover tubes

  • 13. 
    The three major sections of all jet engines are compressor, combustion, and
    • A. 

      Turbo

    • B. 

      Turbine

    • C. 

      Exhaust

    • D. 

      Diffuser

  • 14. 
    The torquemeter exciter wheels are in phase when
    • A. 

      The shaft power output is transmitted from the power unit

    • B. 

      Negative or positive torque is transmitted to the torque indicator

    • C. 

      The rectangular teeth on the exciter wheels are aligned at zero torque

    • D. 

      There is a change in the torque transmitted to the torque shaft exciter wheel

  • 15. 
    • A. 

      Engaged

    • B. 

      Applied

    • C. 

      Released

    • D. 

      Locked

  • 16. 
    The T700 power turbine drive shaft assembly is made up of what two components?
    • A. 

      Overspeed and Np sensor

    • B. 

      Drive shaft and overspeed sensor

    • C. 

      Torque sensor tube and Np sensor

    • D. 

      Drive shaft and torque sensor tube

  • 17. 
    • A. 

      Two

    • B. 

      Three

    • C. 

      Four

    • D. 

      None

  • 18. 
    External flanges on the F100 engine are referred to by
    • A. 

      Letter designations

    • B. 

      Number designations

    • C. 

      Directional refrences

    • D. 

      Accessories refrences

  • 19. 
    • A. 

      15

    • B. 

      18

    • C. 

      21

    • D. 

      23

  • 20. 
    • A. 

      0%

    • B. 

      10%

    • C. 

      20%

    • D. 

      30%

  • 21. 
    Which type of oil system stores the oil in a tank fitted to the side of the engine?
    • A. 

      Wet sump

    • B. 

      Dry sump

    • C. 

      Hot tank

    • D. 

      Cold tank

  • 22. 
    • A. 

      Air pressure

    • B. 

      Oil pressure

    • C. 

      Spring pressure

    • D. 

      Hydraulic pressure

  • 23. 
    Which type of oil pump is used on the T56 engine?
    • A. 

      Gear

    • B. 

      Float

    • C. 

      Gerotor

    • D. 

      Centrifugal

  • 24. 
    Which part of a generator acts as an automatic switching device, changing alternating current to direct current?
    • A. 

      Brushes

    • B. 

      Slip rings

    • C. 

      Commutator

    • D. 

      Permanent magnet

  • 25. 
    The JFS is basically a
    • A. 

      Piston-type starter

    • B. 

      Pneumatic-type starter

    • C. 

      Small gas turbine engine

    • D. 

      Cartridge-pneumatic starter

  • 26. 
    On the T56 engine, which switch energizes the starter control valve to the OPEN position?
    • A. 

      Ground start

    • B. 

      Speed-sensitive

    • C. 

      Fuel enrichment

    • D. 

      Secondary fuel pump pressure

  • 27. 
    The T56 engine anti-icing solenoid valve is
    • A. 

      Normally open

    • B. 

      Energized open

    • C. 

      Normally closed

    • D. 

      Energized closed

  • 28. 
    The T56 component that allows 14th stage air to close the bleed air valve is the
    • A. 

      Balance line

    • B. 

      Bleed air valve

    • C. 

      Speed-sensitive valve

    • D. 

      Speed-sensitive control

  • 29. 
    The core reverser lock proxomity sensors are mounted on the
    • A. 

      Aft fan duct

    • B. 

      Fwd fan duct

    • C. 

      Actuator

    • D. 

      Control valve