Question 1059 Deck General

The correct answer is B) be open without flame screens under the supervision of the senior crew member on duty. The reasoning behind this is that the cargo tank hatches, ullage holes, and Butterworth plates on a barge carrying flammable cargo like gasoline cannot be left open without flame screens, as this poses a significant fire hazard. However, under the supervision of the senior crew member on duty, these openings can be opened temporarily for necessary operations, as long as proper safety precautions are in place. The other options are incorrect because A) allowing open hatches without flame screens during a specific season is not a valid regulation, C) prohibiting open hatches under any circumstances is too restrictive, and D) allowing open hatches when the barge is empty does not address the hazards when the barge is carrying flammable cargo.