Question 5049 Deck General

The correct answer is D) center column chain lockers. The bilge pumps aboard the DEEP DRILLER take suction from various spaces to remove any accumulated water or fluid. The center column chain lockers are part of the vessel's structure and are susceptible to water accumulation, so the bilge pumps must be connected to these spaces to effectively dewater the vessel. The other answer choices are incorrect because: A) the primary salt-water service tank is not a space that requires dewatering, B) the backup drill water tank is also not a space that requires bilge suction, and C) the forward and after column chain lockers, while potentially requiring bilge suction, are not the center column chain lockers specifically mentioned in the question.