The component labeled "A" on the engine reversing device shown in the illustration, performs its function by transmitting _______. Illustration MO-0125

Correct Answer: Option D — a pneumatic signal which activates a hydraulic control cylinder allowing the camshaft to shift axially

Pneumatic control signals actuate servo-hydraulic cylinders on direct-reversing marine diesels, shifting the camshaft axially to align reverse-direction cams and fuel injection timing.