What pressure shall cargo hoses carried on tank vessels be able to withstand?

Correct Answer: Option D — at least 150 psi

46 CFR 35.35-20 specifies that cargo hoses used on tank vessels must be constructed to withstand the maximum pressure of the cargo pump's shutoff head or the relief valve setting. In all cases, the regulation establishes a mandatory minimum pressure rating of 150 psi for these hoses.