What statement is true with respect to the pressure side of a propeller blade?

Correct Answer: Option D — The pressure side of the propeller blade is the side of the blade which faces downstream during ahead motion and is also known as the face of the blade.

The face of a propeller blade is the downstream side, which experiences higher pressure during ahead rotation, hence the term pressure side. Conversely, the back of the blade faces upstream and experiences lower pressure, often becoming the site of cavitation if the pressure drops below the fluid vapor pressure.