USCG Exam Practice · Rule 32 — Sound Signal Definitions
A power-driven vessel is underway but stopped and making no way through the water in an area of restricted visibility. Which sound signal is required under the Inland Rules?
- AOne prolonged blast at intervals of not more than 2 minutes
- BTwo prolonged blasts in succession at intervals of not more than 2 minutes✓ correct
- COne prolonged blast followed by two short blasts at intervals of not more than 2 minutes
- DThree short blasts at intervals of not more than 2 minutes
Why B is correct
33 CFR §83.35(b) requires a power-driven vessel underway but stopped and making no way to sound two prolonged blasts in succession, with an interval of about 2 seconds between them, at intervals of not more than 2 minutes. One prolonged blast applies only when the vessel is making way per §83.35(a).
Cited:33 CFR §83.35
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