OUPV & 100-Ton Master · Sound Signals

In restricted visibility, a power-driven vessel making way through the water sounds, at intervals of not more than 2 minutes:

Explanation

Under Rule 35, a power-driven vessel making way in or near an area of restricted visibility sounds one prolonged blast at intervals of not more than two minutes. A power-driven vessel underway but stopped and making no way sounds two prolonged blasts.

Authority: Navigation Rules, Rule 35

Practice the full OUPV & 100-Ton Master bank

Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.

Related OUPV & 100-Ton Master questions