Aeronautics Knowledge Test: The 54h60-117, Dowty R391 Propeller Systems And Gtcp 165 Engine

79 Questions | By Hamandcheese | Last updated: Mar 18, 2022 | Total Attempts: 141

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Aeronautics Knowledge Test: The 54h60-117, Dowty R391 Propeller Systems And Gtcp 165 Engine - Quiz

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