USCG Exam Practice · Rule 5 — Look-out
In restricted visibility, a manned vessel being towed (and the last vessel of the tow) is required to sound which signal at intervals of not more than 2 minutes?
- AOne prolonged blast followed by two short blasts
- BOne prolonged blast followed by three short blasts✓ correct
- CTwo prolonged blasts in succession
- DOne prolonged blast
Why B is correct
33 CFR §83.35(e) specifies that a manned vessel being towed, or the last vessel of a tow, shall sound four blasts — one prolonged followed by three short blasts — at intervals of not more than 2 minutes. This distinguishes the towed vessel from the towing vessel, which sounds one prolonged and two short blasts under §83.35(c).
Cited:33 CFR §83.35
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