propeller

#1. The blade angle of a propeller is the angle between:

• AThe root chord and the tip chord of the propeller.
• BThe chord and the airflow relative to the propeller.
• CThe chord of the propeller and the longitudinal axis of the aircraft.
• DThe propeller chord and the plane of rotation of the propeller.

#2. The blade angle:

• AIs constant along the propeller blade.
• BDecreases from root to tip.
• CIncreases from root to tip.
• DVaries with changes in engine rpm.

#3. The Geometric Pitch of a propeller is:

• AThe distance it would move forward in one revolution at the blade angle.
• BThe angle the propeller chord makes to the plane of rotation.
• CThe distance the propeller actually moves forward in one revolution.
• DThe angle the propeller chord makes to the relative airflow.