Volume 4 Ure's

79 Questions

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Volume 4 Ure

Volume 4 ure's


Questions and Answers
  • 1. 
    Which 54h60-117 propeller propeller subassembly transmits engine torque to the propeller blades?
    • A. 

      Barrel

    • B. 

      Control

    • C. 

      Low pitch stop

    • D. 

      Pitchlock regulator

  • 2. 
    Which 54h60-117 propeller subassembly carries high centrifugal loads created by the propeller blades?
    • A. 

      Dome

    • B. 

      Barrel

    • C. 

      Control

    • D. 

      Front spinner

  • 3. 
    On the 54h60-117 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

  • 4. 
    On the 54h60-117 propeller, which pitchlock component mechanically holds the stationary and rotating pitchlock ratchets 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 54h60-117 propeller, what component is installed on the blade before the blade butt is formed during manufacture?
    • A. 

      Slip rings

    • B. 

      Microadjusting ring

    • C. 

      Roller thrust bearing

    • D. 

      Beveled thrust washer

  • 6. 
    On the 54h60-117 propeller, which dome assembly part 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 54h60-117 propeller, which dome assembly component limits cam travel and prevents the propeller from exceeding feather and reverse blade angles?
    • A. 

      Rotating pitchlock ratchet

    • B. 

      Low pitch stop

    • C. 

      Stationary cam

    • D. 

      Stop ring

  • 8. 
    On the 54h60-117 propeller propeller, what functions 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 angle angles

    • C. 

      Prevents the blades from decreasing pitch if an overspeed condition occurs

    • D. 

      Transmits engine torque to the blades

  • 9. 
    On the 54h60-117 propeller, which component's purpose is to provide electrical circuits between the brush block assembly and the deicing elements of the blade assemblies?
    • A. 

      Control assembly

    • B. 

      Front spinner section

    • C. 

      Hub mounting bulkead

    • D. 

      Deicer contact ring holder

  • 10. 
    On the 54h60-117 propeller, during normal propeller operation, the output of which pumps is used?
    • A. 

      Main pressure and main scavenge

    • B. 

      Standby pressure and main savenge

    • C. 

      Auxiliary pressure and main scavenge

    • D. 

      Auxiliary pressure and auxiliary scavenge

  • 11. 
    On the 54h60-117 propeller, which pump(s) is/are used during propeller static operation?
    • A. 

      Main pressure

    • B. 

      Main scavenge

    • C. 

      Standby pressure and main scavenge

    • D. 

      Auxiliary pressure and auxiliary scavenge

  • 12. 
    On the 54h60-117 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

  • 13. 
    On the 54h60-117 propeller, which cam schedules a desired blade angle in the beta range?
    • A. 

      Beta set

    • B. 

      Beta follow-up

    • C. 

      Beta shaft rigging

    • D. 

      Alpha shaft rigging

  • 14. 
    On the 54h60-117 propeller, which valve connects the main, standby, and auxiliary pressure pumps' output to the increase pitch lines during negative torque conditions?
    • A. 

      High pressure relief

    • B. 

      Feather actuating

    • C. 

      Feather

    • D. 

      Pilot

  • 15. 
    On the 54h60-117 propeller, which valve assists the feather solenoid valve with hydraulic positioning of the feather and pilot valves?
    • A. 

      High pressure relief

    • B. 

      Feather actuating

    • C. 

      Standby

    • D. 

      Backup

  • 16. 
    On the 54h60-117 propeller, what switch, located in the valve housing, is opened by a cam from 81 to 85 degress propeller blade angle?
    • A. 

      Beta indicator

    • B. 

      Pressure cutout

    • C. 

      NTS

    • D. 

      PCBS

  • 17. 
    The 54h60-117 propeller governor speeder spring tension positions the pilot valve to maintain what percent  rpm in the beta range?
    • A. 

      104 to 108%

    • B. 

      114 to 118%

    • C. 

      99 to 103%

    • D. 

      109 to 113%

  • 18. 
    On the 54h60-117 propeller, if the main filter  becomes clogged, which valve opens to assure continued flow?
    • A. 

      Check

    • B. 

      Bypass

    • C. 

      Low pressure relief

    • D. 

      High pressure relief

  • 19. 
    On the 54h60-117 propeller, when the backup valve is opened, the hydraulic pressure routed to th governor pilot valve  is used for which operation?
    • A. 

      Pitchlock

    • B. 

      Standby

    • C. 

      Reverse

    • D. 

      Airstart

  • 20. 
    On the 54h60-117 propeller, which pressure pump is used to feather or unfeather the propeller during static propeller operation?
    • A. 

      Main

    • B. 

      Backup

    • C. 

      Standby

    • D. 

      Auxiliary

  • 21. 
    On the 54h60-117 propeller, which type of valve opens to allow the output of the standby pump to combine with the output of the main pump?
    • A. 

      Check

    • B. 

      Bypass

    • C. 

      Low pressure relief

    • D. 

      High pressure relief

  • 22. 
    On the 54h60-117 propeller, when standby pump output is not required, where is it routed?
    • A. 

      Atmospheric sump

    • B. 

      Pressurized sump

    • C. 

      Dome assembly

    • D. 

      Pilot valve

  • 23. 
    What type of force used during pitchlock of the 54h60-117 propeller prevents the blades from decreasing pitch?
    • A. 

      Spiral bending

    • B. 

      Thrust bending

    • C. 

      Centrifugal twisting moment

    • D. 

      Aerodynamic twisting moment

  • 24. 
    The purpose of the 54h60-117 propeller pitchlock assembly is to prevent?
    • A. 

      Loss of oil pressure

    • B. 

      Flow of hydraulic fluid to the pilot valve

    • C. 

      An engine overspeed due to a loss of power

    • D. 

      Engine overspeed due to a loss of hydraulic pressure

  • 25. 
    What prevents engagement of the stationary and rotating ratchets on the 54h60-117 propeller when blade angle are below 25 and 55 degrees?
    • A. 

      Loss of hydraulic pressure

    • B. 

      The pitchlock control cam

    • C. 

      An overspeed in excess of 103.5%

    • D. 

      Increase- or decrease pitch pressure

  • 26. 
    What will keep the rotating and stationary ratchets disengaged on the 54h60-117 propeller when the blade angle are between 25 and 55 degress?
    • A. 

      Loss of hydraulic pressure

    • B. 

      The pitchlock control cam

    • C. 

      An overspeed in excess of 103.5%

    • D. 

      Increase- or decrease pitch pressure

  • 27. 
    On the 54h60-117 propeller, what forces the stop levers on the low pitch stop to move outward?
    • A. 

      Hydraulic pressure

    • B. 

      Movable wedge

    • C. 

      Dome piston

    • D. 

      Servo valve

  • 28. 
    When pressure builds to between 240 and 280 psi on the 54h60-117 propeller, which valve is unseated and allows the stop levers to retract
    • A. 

      Servo

    • B. 

      Backup

    • C. 

      Governor pilot

    • D. 

      Low pressure relief

  • 29. 
    What is coordinated by the throttle in the controllable pitch range?
    • A. 

      propeller blade pitch and engine fuel flow

    • B. 

      Propeller blade pitch and temperature limiting

    • C. 

      Engine fuel flow and constant speed governing

    • D. 

      Temperature limiting and constant speed governing

  • 30. 
    Constant speed can only occur when the throttle is positioned from?
    • A. 

      Rvs to flt idle

    • B. 

      Rvs to gnd idle

    • C. 

      Gnd idle to flt idle

    • D. 

      Flt idle to take off

  • 31. 
    On the 54h60-117 propeller, what is the beta range indication display on the coordination?
    • A. 

      34 to 90 degrees

    • B. 

      18 to 90 degrees

    • C. 

      0 to 34 degrees

    • D. 

      0 to 18 degrees

  • 32. 
    On the  54h60-117 propeller, during beta range operation, what moves the pilot valve?
    • A. 

      Cams and mechanical linkage

    • B. 

      Flyweights and speeder spring

    • C. 

      Hydraulic pressure

    • D. 

      Throttle

  • 33. 
    In the beta range of the  54h60-117 propeller, which cam increases the speeder spring tension?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup valve

    • D. 

      Beta follow-up

  • 34. 
    During beta range operation on the  54h60-117 propeller, which cam's rotation moves the mechanical linkage to center the governor pilot valve?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup valve

    • D. 

      Beta-follow-up

  • 35. 
    During alpha range operation on the  54h60-117 propeller, which cam changes speeder spring tension so the governor pilot valve can maintain 100 percent engine speed?
    • A. 

      Beta set

    • B. 

      Speed set

    • C. 

      Backup valve

    • D. 

      Beta follow-up

  • 36. 
    During an overspeed condition in the alpha range on the  54h60-117 propeller, the flyweights move the governor pilot valve to meter hydraulic fluid, which will?
    • A. 

      Increase blade angle

    • B. 

      Decrease blade angle

    • C. 

      Engage the low pitch stop

    • D. 

      Engage the pitchlock ratchets

  • 37. 
    Once an overspeed  54h60-117 propeller condition is corrected and the pilot valve is returned to the center position, what is the result?
    • A. 

      Hydraulic fluid flow to the dome assembly is increased

    • B. 

      Blades are moved to the feather position

    • C. 

      Propeller starts to underspeed

    • D. 

      System is back on-speed

  • 38. 
    During an underspeed condition on the  54h60-117 propeller, what moves the pilot valve?
    • A. 

      Decreased hydraulic pressure

    • B. 

      Increased hydraulic pressure

    • C. 

      Speeder spring

    • D. 

      Flyweights

  • 39. 
    When feathering the  54h60-117 propeller, what acts on the mechanical linkage to open the feather actuating valve?
    • A. 

      Throttle

    • B. 

      Beta shaft

    • C. 

      Pilot valve

    • D. 

      Manual feather cam

  • 40. 
    During  54h60-117 propeller feathering operation, the feather valve is positioned to meter hydraulic fluid to the?
    • A. 

      Aft end of the dome piston

    • B. 

      Forward end of the dome piston

    • C. 

      Decrease-pitch side of the pilot valve

    • D. 

      Increase-pitch side of the pilot valve

  • 41. 
    Which valve is a backup in case the feather valve fails during feathering operation on the  54h60-117 propeller?
    • A. 

      Pilot

    • B. 

      Feather solenoid

    • C. 

      Feather actuating

    • D. 

      Standby pump check

  • 42. 
    During the  54h60-117 propeller feathering operation, which valve acts as a backup for the feather actuating valve?
    • A. 

      Feather

    • B. 

      Standby check

    • C. 

      Feather solenoid

    • D. 

      Standby pump check

  • 43. 
    During the  54h60-117 propeller feathering operation, which valve blocks off the standby pump output and causes hydraulic pressure to increase?
    • A. 

      Feather

    • B. 

      Standby check

    • C. 

      Feather solenoid

    • D. 

      Feather actuating

  • 44. 
    During feather operation on the  54h60-117 propeller, what range in pounds per square inch (psi) of fluid pressure opens the pressure cutout  switch contacts?
    • A. 

      0 to 200

    • B. 

      300 to 500

    • C. 

      600 to 800

    • D. 

      900 to 1,100

  • 45. 
    Which component on the  54h60-117 propeller propeller is the primary electrical ground for energizing the feather override holding coil?
    • A. 

      Feather relay

    • B. 

      Feather solenoid

    • C. 

      Pressure cutout switch

    • D. 

      Pressure cutout backup switch (PCBS)

  • 46. 
    When attempting to unfeather the  54h60-117 propeller in flight, where must the throttle be positioned?
    • A. 

      Any throttle position

    • B. 

      Above flt idle

    • C. 

      At take off

    • D. 

      At gnd idle

  • 47. 
    Which two cams on the alpha shaft control the  54h60-117 propeller unfeathering operation?
    • A. 

      Speed set and beta follow-up

    • B. 

      Manual feather and beta set

    • C. 

      Speed set and pressure cutout backup switch

    • D. 

      Manual feather and pressure cutout backup switch

  • 48. 
    On the  54h60-117 propeller, what is the minimum psi required to release the feather latches and allow the piston to move forward?
    • A. 

      200

    • B. 

      400

    • C. 

      600

    • D. 

      800

  • 49. 
    On the  54h60-117 propeller, after the NTS system actuator rod positions the mechanical linkage in the valve housing when a negative torque condition occurs, what component is shifted?
    • A. 

      Pilot valve

    • B. 

      Beta set cam

    • C. 

      Speed set cam

    • D. 

      Feather actuating valve

  • 50. 
    Besides maintaining the optimum blade phase angle relationship between all propellers, synchrophasing also?
    • A. 

      Keeps the propellers rotating at the same speed

    • B. 

      Keeps the propellers rotating at different speeds

    • C. 

      Prevents the pilot valve from shifting to increase blade angle

    • D. 

      Prevents the pilot valve from shifting to decrease blade angle

  • 51. 
    Which switch has a spring-loaded guard to hold it in the normal position?
    • A. 

      Propeller governor control

    • B. 

      Synchrophaser disarming

    • C. 

      Prop resynchrophase

    • D. 

      Synchrophase master

  • 52. 
    What rpm in the alpha range are the fuel governing check switches used to reset the propeller governor?
    • A. 

      100%

    • B. 

      102%

    • C. 

      104%

    • D. 

      106%

  • 53. 
    On the 54h60-91 propeller speed bias motor, what results when the control winding voltage is different from the reference-winding voltage?
    • A. 

      Throttle anticipation potentiometer speeds up or slows down the engine

    • B. 

      Speed bias motor rotates, and increases or decreases blade angle

    • C. 

      Feedback potentiometer recenters the speed bias motor

    • D. 

      Speed bias servo control locks the clutch and brake unit

  • 54. 
    The master synchrophaser board located in the synchrophaser unit contains a master synchrophaser board located in the synchrophaser unit contains a  master channel and a slave channel used by propellers?
    • A. 

      No.1 and no.2

    • B. 

      No.2 and no.3

    • C. 

      No.3 and no.4

    • D. 

      No. 1 through 4

  • 55. 
    How much change in rpm does the compensating network in the synchrophaser unit allow the speed bias motor to correct?
    • A. 

      2%

    • B. 

      4%

    • C. 

      6%

    • D. 

      8%

  • 56. 
    In the mechanical governing mode, what causes the pilot valve to move and set the 54h60-117 propeller speed?
    • A. 

      Throttle movement

    • B. 

      Speeder spring or flyweights

    • C. 

      Beta set cam and beta follow-up cam

    • D. 

      Speed set cam and manual feather cam

  • 57. 
    Which propeller governing modes add more functionality to basic mechanical governing mode?
    • A. 

      Synchrophasing and beta range

    • B. 

      Normal and synchrophasing

    • C. 

      Beta and normal range

    • D. 

      Alpha and beta range

  • 58. 
    For the 54h60-117 propeller to operate in the normal governing mode, the propeller governor control switch must be placed in the normal position and the throttle must be?
    • A. 

      At or above FLT IDLE and the synchrophase master switch in the ENG 2 or ENG 3 position

    • B. 

      At or above FLT IDLE and the synchrophase master switch in the OFF position

    • C. 

      Below FLT IDLE and the prop resynchrophase switch in RESYNC/INDEX

    • D. 

      Below FLT IDLE and the fuel governing switch in check

  • 59. 
    When an increase in rpm occurs during engine speed stabilization, how is an overspeed condition prevented?
    • A. 

      Decrease speeder spring tension and position the pilot valve to increase blade angle

    • B. 

      Increase speeder spring tnesion and position the pilot valve to decrease blade angle

    • C. 

      Decrease flyweight rotation and position the pilot valve to increase blade angle

    • D. 

      Increase flyweight rotation and position the pilot valve to decrease blade angle

  • 60. 
    How many slave channels are contained on the master synchrophaser board in the  synchrophaser unit?
    • A. 

      One

    • B. 

      Two

    • C. 

      Three

    • D. 

      Four

  • 61. 
    If the slave propeller blades are in the correct phase angle position during the synchrophasing governing mode, the resultant phase error voltage is?
    • A. 

      +1.5

    • B. 

      +1

    • C. 

      0

    • D. 

      -1

  • 62. 
    In the event the r391 dowty propeller lost hydraulic pressure, the counterweights installed at the root of each propeller blade would drive the propeller blades toward what position?
    • A. 

      Max reverse

    • B. 

      Ground idle

    • C. 

      Take off

    • D. 

      Feather

  • 63. 
     which r391 dowty propeller component routes engine oil to and form the cylinder and piston?
    • A. 

      Beta tube

    • B. 

      Gbe valve

    • C. 

      PUAD

    • D. 

      GMAD

  • 64. 
    What r391 dowty propeller assembly part provides an aerodynamic faring over the aft section of the hub?
    • A. 

      Backplate

    • B. 

      Rear spinner

    • C. 

      Front spinner

    • D. 

      Afterbody assemblies

  • 65. 
    The pneumatic air bled from the small gas turbine engine cannot be used to?
    • A. 

      Inflate aircraft tires

    • B. 

      Remove snow and ice from aircraft surfaces

    • C. 

      Supply pneumatic power to aircraft pneumatic starters

    • D. 

      Provide pneumatic power for air-conditioning systems

  • 66. 
    When used for ground operation, the sgt engine can be installed on?
    • A. 

      Pods

    • B. 

      An h-frame

    • C. 

      A two-wheel trailer

    • D. 

      A four-wheel trailer

  • 67. 
    The "c" in the engine number GTCP 165 indicates that the engine?
    • A. 

      Provides electrical power

    • B. 

      Provides compressed air

    • C. 

      Is gas powered

    • D. 

      Is a turbine

  • 68. 
    The impeller wheel and two turbine wheels in the turbine section of the GTCP 165 engine are connected by?
    • A. 

      Couplings on a common shaft

    • B. 

      A gear reduction gearbox

    • C. 

      Helical splines

    • D. 

      Tie bolts

  • 69. 
    On a gtcp 165 engine, the accessory drive section aft housing contains the?
    • A. 

      Fuel control unit

    • B. 

      Oil pump assembly

    • C. 

      Vane-axial fan assembly

    • D. 

      Compressor front shaft bearing

  • 70. 
    On a gtcp 165 engine, which signals are used by the fuel control unit to control engine operation?
    • A. 

      Engine speed and pneumatic thermostat(load control) air pressure

    • B. 

      Ambinet inlet pressure and turbine exhaust pressure

    • C. 

      Engine speed and turbine inlet temperature

    • D. 

      Pt0 and pt7

  • 71. 
    On gtcp 165 engine shutdown, what valve closes to ensure fuel-flow is terminated?
    • A. 

      Poppet

    • B. 

      Scheduling

    • C. 

      Fuel flow divider

    • D. 

      Fuel shutoff solenoid

  • 72. 
    What type of sump design is the oil system on a gtcp 165 engine?
    • A. 

      Wet

    • B. 

      Dry

    • C. 

      Hot

    • D. 

      Cold

  • 73. 
    On a gtcp 165 engine, which component shuts the engine down if the oil pressure drops below the safe minimum operating limit?
    • A. 

      Oil/air cooler

    • B. 

      Oil filter assembly

    • C. 

      Oil pressure switch

    • D. 

      Oil pressure regulator valve

  • 74. 
    On a gtcp 165 engine oil system, air that leaks past various oil seals exits through the?
    • A. 

      Vent system

    • B. 

      Pressure system

    • C. 

      Scavenge system

    • D. 

      Auxiliary

  • 75. 
    During a normal start on a gtcp 165 engine, the igniter plug continues firing until engine rotation in rpm reaches?
    • A. 

      75 %

    • B. 

      80 %

    • C. 

      95 %

    • D. 

      100 %

  • 76. 
    During normal gtcp 165 engine shutdown, what circuit trips to stop the engine?
    • A. 

      100 % circuit

    • B. 

      110 % circuit

    • C. 

      Load-control circuit

    • D. 

      Speed-switch control circuit

  • 77. 
    The modulating and shutoff valve on a gtcp 165 engine will be fully open at what percent rpm?
    • A. 

      60

    • B. 

      70

    • C. 

      80

    • D. 

      90

  • 78. 
    On a gtcp 165 engine, air for the load control system is extracted from the?
    • A. 

      Torus

    • B. 

      Combustor

    • C. 

      Turbine plenum

    • D. 

      Compressor deswirl vanes

  • 79. 
    During load control system operation on a gtcp 165 engine, the pneumatic thermostat is used to?
    • A. 

      Allow for stall-free engine acceleration

    • B. 

      Prevent engine exhaust over-temperature

    • C. 

      Measure the compressor exit air temperature

    • D. 

      Measure the compressor inlet (ambinet) air temperature