Question 618Navigation General

70% to pass

Heeling error is defined as the change of deviation for a heel of _______________.

A 1°While the vessel is on a compass heading of 000°
B 2° and is constant on all headings
C 1° while the vessel is on a compass heading of 180°
D 2°While the vessel is on an intercardinal heading
AI Explanation

The correct answer is A) 1° while the vessel is on a compass heading of 000°. Heeling error is defined as the change in deviation caused by a 1-degree heel of the vessel while on a compass heading of 000°. This is the standard definition used in navigation and seamanship. The other options are incorrect because they do not accurately reflect the standard definition of heeling error. Option B is incorrect because heeling error is not constant on all headings. Option C is incorrect because heeling error is measured at a 1-degree heel, not 2 degrees. Option D is incorrect because heeling error is measured on a 000° heading, not an intercardinal heading.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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