USCG Exam Practice · Rule 34 — Maneuvering and Warning Signals
On inland waters, a power-driven vessel intending to overtake another power-driven vessel on the overtaken vessel's port side shall sound which whistle signal?
- AOne short blast
- BTwo short blasts✓ correct
- COne prolonged blast
- DThree short blasts
Why B is correct
33 CFR §83.34(c)(i)(2) states that a vessel intending to overtake on the other vessel's port side shall sound two short blasts. Note that in the overtaking context, two blasts means port-side overtaking, which differs from the meeting/crossing context where two blasts means 'I intend to leave you on my starboard side.'
Cited:33 CFR §83.34
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