Volume 2. 2A651 CDC ( Q 45-58)

14 Questions | Total Attempts: 125

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CDC Quizzes & Trivia

Awsome test!


Questions and Answers
  • 1. 
    The major sections of a turboprop engine are the power unit,torquemeter assembly, and
    • A. 

      Turbine assembly.

    • B. 

      Compressor assembly.

    • C. 

      Combustion assembly

    • D. 

      RGB assembly.

  • 2. 
    On the T56 turboprop engine, how many stages of reduction are in the RGB's main reduction gear train?
    • A. 

      1.

    • B. 

      2.

    • C. 

      3.

    • D. 

      4.

  • 3. 
    On the T56 turboprop engine, what is the overall reduction ratio of the RGB's main reduction gear train?
    • A. 

      .3125 to 1.

    • B. 

      4.333 to 1.

    • C. 

      13.54 to 1.

    • D. 

      13,820 to 1.

  • 4. 
    On the T56 turboprop engine, there are mounting pads on the aft side of the accessory drive for the fuel control, fuel pump,and
    • A. 

      Speed-sensitive valve.

    • B. 

      Engine main oil pump.

    • C. 

      Speed-sensitive control.

    • D. 

      External scavenge oil pump.

  • 5. 
    On the T56 turboprop engine, which compressor section assembly disperses compressor discharge air and directs it to the combustion chambers?
    • A. 

      Diffuser.

    • B. 

      Compressor rotor.

    • C. 

      Compressor housing.

    • D. 

      Compressor air inlet housing.

  • 6. 
    In the T56 engine, which RGB component rotates at the same speed as the power unit rotors?
    • A. 

      Sun gear.

    • B. 

      Ring gear.

    • C. 

      Main drive gear.

    • D. 

      Pinion input gear.

  • 7. 
    What is the total gear reduction ratio of the RGB?
    • A. 

      3.125:1.

    • B. 

      4.333:1.

    • C. 

      12.85:1.

    • D. 

      13.54:1.

  • 8. 
    What is not a propeller brake positions?
    • A. 

      Locked.

    • B. 

      Applied.

    • C. 

      Engaged.

    • D. 

      Released

  • 9. 
    The propeller brake is in which position when the aircraft is on the ground and the engine is stopped?
    • A. 

      Locked.

    • B. 

      Applied

    • C. 

      Engaged.

    • D. 

      Released.

  • 10. 
    Which valve in the propeller control assembly is actuated by the NTS actuator rod to increase propeller blade angle?
    • A. 

      Pilot.

    • B. 

      Feather.

    • C. 

      Beta backup.

    • D. 

      Alpha backup

  • 11. 
    Which  components comprise the torquemeter assembly?
    • A. 

      Torque shaft, torquemeter housing,and front coupling assembly.

    • B. 

      Two concentric shafts, torquemeter housing,and torquemeter pickup.

    • C. 

      Two outer shafts, torquemeter pickup assembly, and torquemeter backup assembly.

  • 12. 
    The amount of twisting deflection is determined by the
    • A. 

      Torque shaft.

    • B. 

      Reference shaft.

    • C. 

      Safety coupling

    • D. 

      Pinion input gear.

  • 13. 
    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

  • 14. 
    The perpose of the T56 safety coupling is to
    • A. 

      Prevent overspeed of the propeller.

    • B. 

      Increase propeller pitch as negative torque occurs.

    • C. 

      Maintain constant engine speed by decreasing propeller blade angle.

    • D. 

      Disconnect the power section from the RGB assembly

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