Propeller Flashcards

1
Q

The maximum propeller rpm when at MAX setting is:

  • 1,300
  • 1,200
  • 750
  • 400
A

-1,200

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

When initiating auto feather action, the SCU of the failed engine:

  • Subsequently disarms the auto-feather, preventing inadvertent feathering of the live engine.
  • Subsequently disarms the auto-feather, preventing inadvertent feathering of the live engine and also signals the live engine ECU to up-trim.
  • Signals the live engine ECU to up-trim.
  • Signals the live enqine ECU to cancel Np under-speed protection.
A
  • Subsequently disarms the auto-feather, preventing inadvertent feathering of the live engine and also signals the live engine ECU to up-trim.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Following an engine failure, uptrim causes the live engine to automatically uptrim:

  • 15% of set power, provided the Auto Feather is Off.
  • 10% of set power, provided the Auto Feather is armed.
  • 10% of engine-rated power, provided the Auto Feather is armed.
  • 5% of set power; auto-feather may be either armed or off.
A
  • 10% of set power, provided the Auto Feather is armed.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Propeller Over-speed governing first occurs at:

  • 1,250 rpm, by pneumatic control of the MFC.
  • 1,250 rpm, by the over-speed governor driving the blades toward coarse.
  • 1,308 rpm, by the NH over-speed governor.
  • 1,308 rpm, by the over-speed governor driving the blades toward coarse.
A
  • 1,250 rpm, by the over-speed governor driving the blades toward coarse.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The propeller pitch-lock mechanism:
-Assists engine start by locking the prop blades at fine pitch.
-Locks the prop in Feather after an engine failure.
-Controls prop RPM in the event of the pilot mishandling the aircraft.
- Prevents blade angle change greater than 1° or prop RPM increasing more
than 2% following total loss of propeller control oil pressure.

A
  • Prevents blade angle change greater than 1° or prop RPM increasing more
    than 2% following total loss of propeller control oil pressure.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Selection of an alternate feather switch to the alternate feather position:
- Simulates 60% torque, results in a 3% NH drop and, arms the auto-feather.
- Caused the ‘Up Trim’ annunciator to illuminate.
- Will not cause the propeller to feather unless the appropriate condition
lever is at ‘start/feather’ or ‘fuel off’
- Should be made when the pilot wishes to shut the engine down.

A
  • Will not cause the propeller to feather unless the appropriate condition
    lever is at ‘start/feather’ or ‘fuel off’
How well did you know this?
1
Not at all
2
3
4
5
Perfectly