Question 62Safety & Environmental - Assistant Engineer

The correct answer is D. Prior to performing any hot-work (e.g. burning, welding) on a tank that has previously contained a flammable or hazardous product, U.S. Coast Guard regulations require an inspection by a certified marine chemist or the senior officer present, and an entry in the official logbook documenting the inspection and authorization for the hot-work. This is a critical safety procedure to ensure the tank atmosphere is inert and there is no risk of explosion or fire. Options A, B, and C are incorrect because they do not follow the proper regulatory requirements for hot-work in this situation. The chief engineer alone cannot authorize the hot-work, it cannot simply proceed without the chemist's certificate, and the work cannot be done at all without the required inspection and logbook entry.