Question 99 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND Two vessels are meeting in a narrow channel as shown in illustration D037RR below. Vessel "A" is a sailing vessel. Vessel "B" is a power-driven vessel which can safely navigate only within the channel. Vessel "B" sounds the danger signal. Vessel "A" shall take what action?

Rules of the Road Question 99 diagram
A sound one prolonged followed by two short blasts
B have the right of way
C not impede the passage of vessel "B"
D maintain course and speed
AI Explanation

The correct answer is C) not impede the passage of vessel "B". In this scenario, vessel "B" is a power-driven vessel that can only safely navigate within the narrow channel. The International Regulations for Preventing Collisions at Sea (COLREGS) state that a sailing vessel (vessel "A") must not impede the safe passage of a power-driven vessel (vessel "B") in a narrow channel. Vessel "B" has sounded the danger signal, indicating it is in a constrained situation and requires the sailing vessel to take action to avoid impeding its passage. The other answer choices are incorrect because: A) sounding the danger signal is the responsibility of vessel "B", not vessel "A"; B) the sailing vessel does not have the right of way in this situation; and D) maintaining course and speed would impede the passage of vessel "B", which is not allowed.

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