Pitch is defined as which of the following?

Pitch is defined as which of the following?

• A. The RPM of the engine
• B. The distance a propeller would travel in one revolution
• C. The angle of attack of the blades
• D. The material of the propeller

Answer: (B)

Pitch is the distance a propeller would move forward in one complete turn through a solid, slip-free medium. It’s a blade geometry measure, usually given in inches per revolution, representing the theoretical forward advance per revolution. This is why it’s the best description: it directly defines how far the vessel would travel per turn if there were no slippage. In real water, actual movement is less due to slip, but pitch still reflects the intended advance per revolution. The other options describe things unrelated to pitch: engine RPM is engine speed, not blade geometry; angle of attack is about blade orientation relative to the flow (not the forward distance per revolution); and the material of the propeller doesn’t determine pitch.

Pitch is the distance a propeller would move forward in one complete turn through a solid, slip-free medium. It’s a blade geometry measure, usually given in inches per revolution, representing the theoretical forward advance per revolution. This is why it’s the best description: it directly defines how far the vessel would travel per turn if there were no slippage. In real water, actual movement is less due to slip, but pitch still reflects the intended advance per revolution. The other options describe things unrelated to pitch: engine RPM is engine speed, not blade geometry; angle of attack is about blade orientation relative to the flow (not the forward distance per revolution); and the material of the propeller doesn’t determine pitch.