Question 622General Subjects - Assistant Engineer
70% to passIn 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?
ADiesel engines with a power output of more than 130kW.
BDiesel engines with a power output not greater than 130kW.
CDiesel engines powering emergency diesel-generator sets.
DDiesel engines powering lifeboats.
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 engines on larger vessels. Engines under 130kW, emergency diesel generators, and lifeboat engines are typically exempt from these specific NOx emission limits. The 130kW threshold is the key regulation that makes option A the correct answer, while the other options do not accurately capture the scope of the NOx emission requirements under MARPOL Annex VI.
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