To pump bilge water out of the port pump room on the DEEP DRILLER, using the number 2 bilge pump, open port-side valve __________.

Correct Answer: Option D — 42

Engineering diagrams for the DEEP DRILLER designate valve 42 as the specific port-side suction control required for the number 2 bilge pump to clear accumulated water from the port pump room during emergency dewatering operations.