Navigation lightsQuestion 206 of 566

How wide is the arc of each sidelight?

  1. 135 degrees
  2. 225 degrees
  3. 360 degrees
  4. 112.5 degrees
Show answer

Correct answer: 112.5 degrees

Each sidelight shows over 112.5 degrees of the horizon.

Source: Safe Boating Guide (TP 511E, 2026), Navigation lights, page 28

All questionsPractice the topic "Navigation lights"

Questions last reviewed: 18 October 2026