Boating Coach US
Navigation lights and shapesQuestion 69 of 352

When do the rules about shapes, such as a ball or cone, apply?

  1. By night only
  2. Only in fog at night
  3. Only in a narrow channel
  4. By day
Show answer

Correct answer: By day

Boats show shapes in the daytime. At night they show lights.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 83: Inland Navigation Rules, § 83.20 Application (Rule 20)

All questionsPractice the topic "Navigation lights and shapes"

Questions last reviewed: 18 October 2026