Question 5058 Deck General

The correct answer is C) 41. The reasoning is that on the DEEP DRILLER, valve 41 must be opened in order to pump bilge water out of the port pump room using the number 1 bilge pump. This is in accordance with the specific system configuration and piping layout of the DEEP DRILLER, which is a common test scenario for US Coast Guard Captain's License Examinations. The other answer choices are incorrect because they correspond to different valves that are not involved in the specific task of pumping bilge water from the port pump room using the number 1 bilge pump on the DEEP DRILLER.