INTERNATIONAL ONLY Two power-driven vessels...

Question 1 of 2707066636eeb28f7522a1c51be8b

INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the whistle. What is vessel "B" in this situation?

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Question 1 of 27070

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🔍 Key Concepts

• Rule 15 – Crossing Situation (International Rules): Which power‑driven vessel must keep out of the way when two vessels are crossing so as to involve risk of collision? • Relative bearing: For each vessel, is the other on her port side or starboard side? The vessel that has the other on her own starboard side has specific obligations. • Rule 34 – Manoeuvring and Warning Signals (International): One short blast means, "I am altering my course to starboard" (not a passing agreement).

💭 Think About

• From vessel A’s viewpoint, where is vessel B located – on A’s port bow or starboard bow? From vessel B’s viewpoint, where is vessel A located? Sketch the relative positions if needed. • Once you know which vessel has the other on her starboard side, apply Rule 15: which vessel must act (alter course and/or speed), and which should maintain course and speed? Then match that role to the answer choices. • Think about why vessel A is the one sounding one short blast. Under the International Rules, which vessel normally announces a course alteration in a crossing situation – the one that must keep out of the way, or the one that should maintain course and speed?

✅ Before You Answer

• Verify under Rule 15 (Crossing) which vessel is the give-way vessel: the one that has the other vessel on her starboard side. • Confirm that "burdened vessel" is an older term often used for the vessel that must keep out of the way; compare that with the term stand‑on vessel (not listed in the choices). • Double‑check the illustration to be sure it is a true crossing situation (not overtaking) by looking at the headings: are they roughly at right angles, and is either vessel coming from more than 22.5° abaft the beam?