Referring to the illustrated motor ship fresh water cooling system drawing, which set of cooling water pumps would MOST likely require a priming maintenance system or the use of deep well pumps? (MP-CW-06)

Illustration MP-CW-06: the U.S. Coast Guard has not released this illustration.

Question

Referring to the illustrated motor ship fresh water cooling system drawing, which set of cooling water pumps would MOST likely require a priming maintenance system or the use of deep well pumps? (MP-CW-06)

Illustration MP-CW-06: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option B: The main engine piston cooling fresh water pumps.. Piston cooling systems often involve telescopic pipes or articulated joints that can introduce air into the system. Because these components are subject to motion and potential leakage, the pumps may lose prime, necessitating a priming system or the use of deep well pumps to ensure reliable suction.