How long is a Prolonged Blast?

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Multiple Choice

How long is a Prolonged Blast?

Explanation:
A prolonged blast is defined by its duration. In standard maritime whistle signaling, a short blast runs about one second, while a prolonged blast lasts four to six seconds. The longer blast is used to grab attention or indicate a vessel’s presence or a warning, and that specific four-to-six-second window is the agreed-upon duration in training and regulatory guidance. The other options are outside the typical range for a prolonged signal, so four to six seconds is the correct reference.

A prolonged blast is defined by its duration. In standard maritime whistle signaling, a short blast runs about one second, while a prolonged blast lasts four to six seconds. The longer blast is used to grab attention or indicate a vessel’s presence or a warning, and that specific four-to-six-second window is the agreed-upon duration in training and regulatory guidance. The other options are outside the typical range for a prolonged signal, so four to six seconds is the correct reference.

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