One long blast (Inland and International) is used as a blind bend for both; inland also when leaving berth. What does this signal convey?

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Multiple Choice

One long blast (Inland and International) is used as a blind bend for both; inland also when leaving berth. What does this signal convey?

Explanation:
One long blast around a bend is a presence signal—it's used to warn other vessels that you may not be seen due to limited visibility around the bend. This applies under both International and Inland rules. Inland rules also use a long blast when you are leaving a berth. It’s not a signal of changing course or of overtaking; those actions are shown by other whistle signals.

One long blast around a bend is a presence signal—it's used to warn other vessels that you may not be seen due to limited visibility around the bend. This applies under both International and Inland rules. Inland rules also use a long blast when you are leaving a berth. It’s not a signal of changing course or of overtaking; those actions are shown by other whistle signals.

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