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Buoys and markersQuestion 476 of 566

A daybeacon is a white diamond with a red border and a green square in the centre. What does it show?

  1. A port hand edge of the channel
  2. A junction, with the preferred channel to the right
  3. An isolated danger
  4. A control zone
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Correct answer: A junction, with the preferred channel to the right

This is a junction daybeacon. The green square shows the preferred channel is on the right.

Source: Safe Boating Guide (TP 511E, 2026), Lateral Buoys and Standard Daybeacons, page 64

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Questions last reviewed: 18 October 2026