CDC 2A651 Volume 4. Propellers And Small Gas Turbines (Q 1-15)

15 Questions | Total Attempts: 271

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Shrot practice tes on Propellers and Small Gas Turbines.


Questions and Answers
  • 1. 
    Which 54H60-91 propeller subassembly transmits engine torque to the propeller blades?
    • A. 

      Barrel.

    • B. 

      Control.

    • C. 

      Low pitch stop.

    • D. 

      Pitchlock regulator.

  • 2. 
    On the 54H60-91 propeller,which component delivers the actual propeller blade angle from the blade to the control assembly?
    • A. 

      Microadjusting ring.

    • B. 

      Beta feedback shaft.

    • C. 

      Blade segment gear.

    • D. 

      Blade bushing.

  • 3. 
    On the 54H60-91 propeller, which is a function of the pitchlock regulator?
    • A. 

      Stops the dome piston from increasing blade angle above 23.3

    • B. 

      Prevents the blades from decreasing pitch if hydraulic pressure is lost.

    • C. 

      Prevents the cam bearing rollers from bottoming out in the track slopes.

    • D. 

      Prevents the propeller from going into the beta range when the throttle is positioned in alpha range.

  • 4. 
    On the 54H60=91 propeller, which pitchlock component mechanically holds the stationary and rotating pitchlock ratchets apart during reversing and unfeathering operations?
    • A. 

      Pitchlock control cam.

    • B. 

      Pitchlock ratchet piston.

    • C. 

      Externally threaded ring.

    • D. 

      Externally splined spacer ring.

  • 5. 
    On the 54H60-91 propeller, which component is used in place of a shim plate on the NO. 1 blade?
    • A. 

      Beveled thrust washer.

    • B. 

      Stationary ratchet.

    • C. 

      Beta segment gear.

    • D. 

      Blade barrel shim.

  • 6. 
    On the 54H60-91 propeller, which dome assembly  parts allows the rotating cam to turn while the stationary cam remains in a fixed position?
    • A. 

      Roller shaft.

    • B. 

      Track slopes.

    • C. 

      Ball bearings.

    • D. 

      Roller bearings.

  • 7. 
    On the 54H60-91 propeller, what function is a task of the low pitch stop assembly?
    • A. 

      Prevents the propeller from going into the beta range when the throttle is positioned in the alpha range.

    • B. 

      Limits cam travel and prevents the propeller from exceeding feather and reverse blade angles.

    • C. 

      Prevents the blades from decreasing pitch if an overspeed condition occurs.

    • D. 

      Transmits engine torque to the blades.

  • 8. 
    On the 54H60-91 propeller, which component provides a means for balancing the propeller?
    • A. 

      Deicer contact ring holder.

    • B. 

      Hub mounting bulkhead.

    • C. 

      Front spinner.

    • D. 

      Afterbody.

  • 9. 
    On the 54H60-91 propeller, hydraulic fluid is directed from the pump housing to the barrel assembly through what component?
    • A. 

      Valve housing.

    • B. 

      Low pitch stop.

    • C. 

      Transfer bearings.

    • D. 

      Pitchlock regulator.

  • 10. 
    On the 54H60-91 propeller, what is the function of the differential gear train assembly?
    • A. 

      Drives the main and standby pressure pumps.

    • B. 

      Controls operation of the pilot valve and serves as an electrical ground.

    • C. 

      Drives the rotating sleeve when the throttle is positioned in the beta range.

    • D. 

      Transmits blade angle movement to the valve housing and drives the propeller governor flyweights.

  • 11. 
    On the 54H60-91 propeller, during normal propeller operation, the output of which pumps is used?
    • A. 

      Main pressure and main scavenge.

    • B. 

      Standby pressure and main scavenge.

    • C. 

      Auxiliiary pressure and main pressure.

    • D. 

      Auxiliary pressure and auxiliary scavenge.

  • 12. 
    On the 54H60-91 propeller, which pump assists the main pressure pump when large blade angle movements are required?
    • A. 

      Main scavenge.

    • B. 

      Standby pressure.

    • C. 

      Auxiliary pressure.

    • D. 

      Auxiliary scavenge.

  • 13. 
    On the 54H60-91 propeller,which cam disarms the NTS system linkage when the throttle is positioned in the beta range?
    • A. 

      Manual feather.

    • B. 

      Beta follow-up.

    • C. 

      Speed set.

    • D. 

      Beta set.

  • 14. 
    ON the 54H60-91 propeller, which valve, contained in the valve housing, controls the flow of hydraulic fluid to and from the dome assembly?
    • A. 

      Standby.

    • B. 

      Feather.

    • C. 

      Backup.

    • D. 

      Pilot.

  • 15. 
    The 54H60-91 propeller governor speeder spring tension positions the pilot valve to maintain what percent rpm in the beta range?
    • A. 

      99 to 103%

    • B. 

      104 to 108%

    • C. 

      109 to 113%

    • D. 

      114 to 118%

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