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

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

Component 'A' functions as a pneumatic pilot valve transmitting a control air signal that actuates the master hydraulic control cylinder, providing the immense force needed to shift heavy marine camshafts axially.