Prepare for the Afloat Safety Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam!

Multiple Choice

What does a two-ball day shape indicate during daylight?

A two-ball day shape signals that the vessel is not under command. This means the vessel cannot maneuver as required by the collision regulations, usually due to a failure or restriction (like engine or steering problems). Because it cannot reliably keep to a safe course or speed, other vessels must take early and substantial action to avoid it and pass at a safe distance. The two balls are displayed vertically during daylight to communicate this status; at night, the equivalent signal is two all-round red lights in a vertical line.

A two-ball day shape signals that the vessel is not under command. This means the vessel cannot maneuver as required by the collision regulations, usually due to a failure or restriction (like engine or steering problems). Because it cannot reliably keep to a safe course or speed, other vessels must take early and substantial action to avoid it and pass at a safe distance. The two balls are displayed vertically during daylight to communicate this status; at night, the equivalent signal is two all-round red lights in a vertical line.