Question 316General Subjects - 1st Asst/Chief

70% to pass

As a management level engineering officer on a motor vessel equipped with engines capable of burning both high sulfur content residual fuels and low sulfur content distillate fuels, on departure from a US port, when would you plan for the fuel changeover be accomplished?

AWhen leaving US navigable waters 3 miles from the coastline.

BWhen leaving the SOx emission control area set by local authorities.

CWhen leaving US territorial boundaries 12 miles from the coastline.

DWhen leaving the US economic exclusion zone 200 miles from the coastline.

AI Explanation

The correct answer is B) When leaving the SOx emission control area set by local authorities. The reasoning for this is that the fuel changeover from high sulfur content residual fuels to low sulfur content distillate fuels is required when departing a designated SOx emission control area, as set by local authorities. This is in accordance with international and national regulations aimed at reducing sulfur oxide emissions from ships. Options A, C, and D do not accurately reflect the regulatory requirement for fuel changeover, which is tied to the SOx emission control area boundaries, not the general US navigable waters, territorial boundaries, or economic exclusion zone.