USCG Auxiliary Advanced Coastal
Navigation (ACN) Exam Questions And
Answers |Latest 2025 | Guaranteed Pass
In simple terms, marine navigation is _______________. - Answer✔getting your vessel from
where you are to where you want to be.
Coastal navigation refers to _______________. - Answer✔Navigating in coastal waters via aids
to navigation (ATONs)
It is convenient to subdivide navigation into two distinct phases, _________ and ________. -
Answer✔voyage planning, underway navigation
The steps tin voyage planning include; ________, _________, ________, __________, and
________. - Answer✔assemble materials, formulate alternatives, evaluate, select voyage and
prepare float plan, and weigh anchor.
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For the purposes of this course, the earth is a ________ with a mean (average) diameter of
_______ nautical miles, and a circumference of ______nautical miles. - Answer✔Sphere, 6,880,
21,614
The process of predicting the future position of a vessel from knowledge of its present (or
starting) position, the course steered, and speed maintained is termed ______ ______. -
Answer✔dead reckoning
The earth revolves about an axis of rotation , which passes through the center of the earth and
interesects the surface at two points, termed the _____ and ______ - Answer✔north and south
geographic poles
A plane passed through the center of the earth intersects the surface of the earth to produce a
geometric figure termed ______ _______. - Answer✔great circle
ON the surface of a sphere, the shortest distance between any two points lies on the _____
______ connecting these two points. - Answer✔great circle
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