Question 1085 Deck General

The correct answer is D) All of the above. By regulation, the cargo tank atmosphere must be inert before and during loading, crude oil washing, and discharging operations. This is a safety requirement to prevent the risk of fire or explosion from flammable vapors in the cargo tanks. Maintaining an inert atmosphere ensures there is not enough oxygen present to support combustion. This applies to all cargo handling operations to mitigate the potential hazards. The other answer choices (A, B, and C) are incorrect because the requirement for an inert cargo tank atmosphere applies to all three operations - loading, crude oil washing, and discharging - not just one or two of them.