USCG Exam Practice · Rule 34 — Maneuvering and Warning Signals
Under the Inland Navigation Rules, when a vessel in a meeting situation hears a one-blast signal from the other vessel and is in doubt about the safety of the proposed maneuver, she shall take which action?
- ASound one short blast in reply and proceed with caution
- BSound at least five short and rapid blasts and take appropriate precautionary action✓ correct
- CSound two short blasts to propose an alternative maneuver
- DSound one prolonged blast and stop her engines
Why B is correct
33 CFR §83.34(a)(ii) states that if a vessel doubts the safety of the proposed maneuver upon hearing a one or two blast signal, she shall sound the doubt/danger signal of at least five short and rapid blasts as prescribed in §83.34(d), and each vessel shall take appropriate precautionary action until a safe passing agreement is made.
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