Coast Guard Exams
Question 376General Subjects - 1st Asst/Chief70% to pass

In accordance with the international MARPOL Annex VI regulations, the nitrous oxide (NOx) emissions associated with certain diesel engines are required to operate under certain acceptable limits. To which of the listed engine applications would the NOx emission regulations apply?

AI Explanation
The correct answer is A) Diesel engines with a power output of more than 130kW. The MARPOL Annex VI regulations on NOx emissions apply to diesel engines with a power output greater than 130kW, which includes most main propulsion diesel engines on commercial vessels. Diesel engines powering emergency generator sets (option C), lifeboats (option D), or with a power output of 130kW or less (option B) are generally exempt from these specific NOx emission limits under the MARPOL Annex VI regulations.