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USCG Exam Practice · Rule 34 — Maneuvering and Warning Signals

On inland waters, two power-driven vessels are meeting within half a mile of each other. Vessel A sounds one short blast. Vessel B doubts the safety of the proposed maneuver. What action must Vessel B take?

  1. ASound one short blast in reply and proceed with caution
  2. BSound two short blasts to propose an alternative maneuver
  3. CSound at least five short and rapid blasts and take appropriate precautionary action✓ correct
  4. DSound one prolonged blast and stop her engines

Why C is correct

33 CFR §83.34(a)(ii) states that if a vessel doubts the safety of the proposed maneuver, she shall sound the signal specified in paragraph (d) — at least five short and rapid blasts — and each vessel shall take appropriate precautionary action until a safe passing agreement is made.

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On inland waters, two power-driven vessels are meeting within half… — USCG Exam Practice · CaptainsGround