Question 1010 Deck General

The correct answer is B) power ventilation. According to the regulations in the Code of Federal Regulations (CFR) for tank vessels, pump rooms carrying grade C liquid cargo, with machinery spaces below the freeboard deck, are required to have power ventilation. This is specified in 46 CFR 32.55-10, which states that power ventilation must be provided for pump rooms on tank vessels. The other options, such as gooseneck vents, a vent header system, or dual ducts, are not the specific requirement for this type of pump room configuration.