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

14 Questions | By Vison | Updated: Jan 22, 2013 | Attempts: 126

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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.
Correct Answer
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.
Correct Answer
B. 2.
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.
Correct Answer
C. 13.54 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.
Correct Answer
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.
Correct Answer
A. Diffuser.
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.
Correct Answer
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.
Correct Answer
D. 13.54:1.
8.

What is not a propeller brake positions?
- A.
  
  Locked.
- B.
  
  Applied.
- C.
  
  Engaged.
- D.
  
  Released
Correct Answer
C. Engaged.
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.
Correct Answer
B. Applied
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
Correct Answer
B. Feather.
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.
Correct Answer
A. Torque shaft, torquemeter housing,and front coupling assembly.
12.

The amount of twisting deflection is determined by the
- A.
  
  Torque shaft.
- B.
  
  Reference shaft.
- C.
  
  Safety coupling
- D.
  
  Pinion input gear.
Correct Answer
A. Torque shaft.
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
Correct Answer
C. The rectangular teeth on the exciter wheels are aligned at zero torque.
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
Correct Answer
D. Disconnect the power section from the RGB assembly

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Current Version
Jan 22, 2013

Quiz Edited by
ProProfs Editorial Team
Dec 21, 2010

Quiz Created by
Vison

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

The major sections of a turboprop engine are the power unit,torquemeter assembly, and

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

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

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

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

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

What is the total gear reduction ratio of the RGB?

What is not a propeller brake positions?

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

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

Which components comprise the torquemeter assembly?

The amount of twisting deflection is determined by the

The torquemeter exciter wheels are in phase when

The perpose of the T56 safety coupling is to