Classification society requirements stipulate that main sea water cooling pumps be furnished with redundancy with either two dedicated pumps or with one dedicated pump and one standby pump available for other seawater services. Referring to the illustrated motor ship seawater cooling system drawing, what statement is true concerning meeting these classification society requirements? (MP-CW-01)

Illustration MP-CW-01: the U.S. Coast Guard has not released this illustration.

Question

Classification society requirements stipulate that main sea water cooling pumps be furnished with redundancy with either two dedicated pumps or with one dedicated pump and one standby pump available for other seawater services. Referring to the illustrated motor ship seawater cooling system drawing, what statement is true concerning meeting these classification society requirements? (MP-CW-01)

Illustration MP-CW-01: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option D: The standby main seawater cooling pump may also function as a ballast pump.. Classification society rules require redundancy for essential services like seawater cooling. While dedicated pumps are preferred, regulations permit the standby pump to serve other auxiliary functions, such as ballast, provided it can be immediately diverted to its primary cooling role. Fire pumps generally require dedicated, independent piping and power sources.