Bottom mounted crude oil washing machines are primarily used for _________.

Correct Answer: Option C — areas where direct impingement from deck mounted machines cannot be satisfactorily reached

Bottom-mounted COW machines are specifically designed to clean areas shielded from the reach of deck-mounted machines, such as the underside of structural members and internal piping. They ensure comprehensive cleaning coverage, which is essential for minimizing cargo retention and preventing the accumulation of hazardous sludge.