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General navigation

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About this collection

The USCG bank covers deck subjects, navigation, navigation problems, rules of the road, GMDSS and other areas. Open a specific collection for focused preparation.

“USCG — General navigation” contains 2,186 questions across 1 collection.

Learning

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Exam

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Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

In the IALA Buoyage System, preferred-channel-to-port or preferred-channel-to-starboard buoys, when fitted with lights, will show a __________.

One correct answer

  • a. quick flashing light
  • b. long flashing light
  • c. composite group flashing (2 + 1) light✓ Correct answer
  • d. group flashing
What would be the height of the tide at Crisfield, MD, at 0310 DST (ZD +4) on 6 May 1983?

One correct answer

  • a. 0.1 foot
  • b. 0.5 foot✓ Correct answer
  • c. 1.1 feet
  • d. 1.6 feet
A yellow buoy may mark a(n) __________.

One correct answer

  • a. wreck
  • b. shoal area
  • c. anchorage area✓ Correct answer
  • d. middle ground
Variation is not constant; it is different with every change in __________.

One correct answer

  • a. speed
  • b. vessel heading
  • c. geographical location✓ Correct answer
  • d. cargo
The Light List shows that a navigational light has a nominal range of 10 miles and a height above water of 38 feet (11.6 meters). Your height of eye is 52 feet (15.8 ,meters) and the visibility is 11.0 miles. At which approximate range will you first sight the light?

One correct answer

  • a. 10.5 miles✓ Correct answer
  • b. 13.9 miles
  • c. 15.6 miles
  • d. 18.0 miles

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