Question 625General Subjects - Assistant Engineer
70% to passIn accordance with the international MARPOL Annex VI regulations, which of the listed substances are prohibited from being burned in a shipboard incinerator?
APolychlorinated biphenyls (PCBs)
BOil residue sludges
CUnground garbage
DSewage waste sludges
AI Explanation
The correct answer is A) Polychlorinated biphenyls (PCBs). Under MARPOL Annex VI regulations, PCBs are prohibited from being burned in shipboard incinerators. This is because PCBs are highly toxic and persistent organic pollutants that can have severe environmental and health impacts when released. The regulations aim to prevent the incineration of such hazardous substances onboard ships. The other options are incorrect because oil residue sludges, unground garbage, and sewage waste sludges are generally permitted to be incinerated onboard, as long as the incinerator meets the applicable air emissions standards under MARPOL Annex VI.
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