Question 787 Deck General

The correct answer is C) Personnel working in regulated areas must use respirators. This is correct because benzene is a hazardous and carcinogenic substance, and the regulations for vessels carrying benzene in bulk require the use of respirators for personnel working in regulated areas to protect them from exposure to the fumes. The other answer choices are incorrect: A) Positive-pressure ventilation is not required, but respirators are. B) Other cargoes may be carried, but proper safety precautions must be taken. D) Benzene is a known carcinogen and its exposure must be strictly controlled.