Propeller LO 4.2 - 4.12

The type of propeller assembly which blade pitch or angle CANNOT be changed both in flight and on ground is known as?

• Stator Propeller

• Fixed Pitch Propeller

• Variable Pitch Propeller

The type of propeller assembly which has the ability to change the blade pitch both in flight and on ground is known as:

• Stator Pitch Propeller

• Fixed Pitch Propeller

• Variable Pitch Propeller

What is ability of Variable Pitch Propeller?

• Remain static of the blade pitch both in flight and on ground

• Propeller assembly which blade pitch or angle cannot be changed

• Able to change the blade pitch both in flight and on ground

In order to ease engine starting, the blades are turned to :-

• fine pitch

• coarse pitch

• extra fine pitch

Why during starting blade attitude is selected to extra fine pitch?

• To reduce the air loads

• To achieve short takeoff capability

• To prevent propeller blade damage

To ease engine starting the propeller blade pitch are selected passing through………. to extra fine pitch ;

• Fine Pitch Stop

• Course Pitch Stop

• Centrifugal Latch

The RPM Control Lever is connected to a control unit, known as the………….., that is mounted on and driven by the engine:

• Constant Speed Unit

• Pitch Control Mechanism

• Counterweight

The function of fine pitch stops or flight fine pitch stops is;

• to prevent the propeller moving into extra fine in flight

• to prevent the propeller moving coarse pitch.

• to prevent damage the engine.

The propeller must not come out of the feathered position by accident as this may result in serious damage to the engine and also create ;

• asymmetric problems in controlling the aircraft.

• Gyroscopic problem in controlling the aircraft.

• Slipstream problem in controlling the aircraft.

The rotation of propeller caused by air flowing over it without engine operating is termed?

• wind-milling

• plain of rotation

• propeller tracking