Question 1069 Deck General

The correct answer is B) 150 psi. The regulations for cargo hoses on tank vessels, as specified in 46 CFR 39.20-9, state that the cargo hose must be designed to withstand at least the pressure of the shutoff head of the cargo pump or the pump relief valve setting, whichever is greater, but in no case less than 150 psi. This ensures the hose can safely handle the maximum pressure it may be subjected to during cargo operations. The other answer choices are incorrect because 100 psi (A) is below the 150 psi minimum requirement, and 200 psi (C) and 250 psi (D) exceed the minimum requirement without necessarily matching the actual pump shutoff head or relief valve setting.