What is a typical day shape for a vessel not under command?

Prepare for the COLREGs Scenarios Test. Enhance your maritime navigation skills with interactive simulations, multiple choice questions, and detailed explanations. Ace the test with thorough practice!

Multiple Choice

What is a typical day shape for a vessel not under command?

In daylight, ships use day shapes to communicate their maneuvering status to others. A vessel that cannot maneuver as required (not under command) signals this by displaying two black balls in a vertical line. This simple, quick symbol tells nearby vessels to give extra room and avoid actions that could force a collision. The other shapes shown correspond to different conditions, not not-under-command status, so they would not indicate inability to maneuver. Therefore, two black balls in a vertical line is the correct day shape for a vessel not under command.

In daylight, ships use day shapes to communicate their maneuvering status to others. A vessel that cannot maneuver as required (not under command) signals this by displaying two black balls in a vertical line. This simple, quick symbol tells nearby vessels to give extra room and avoid actions that could force a collision. The other shapes shown correspond to different conditions, not not-under-command status, so they would not indicate inability to maneuver. Therefore, two black balls in a vertical line is the correct day shape for a vessel not under command.

More practice questions