Question 1000 Rules of the Road
90% to passBOTH INTERNATIONAL & INLAND Your vessel is at anchor in fog. The fog signal of another vessel, apparently underway, has been growing louder and the danger of collision appears to exist. In addition to your fog signal, what signal may be used to indicate your presence?
The correct answer is D) One short, one prolonged, and one short whistle blast. This is the correct answer because the International Regulations for Preventing Collisions at Sea (COLREGS) Rule 35(f) states that a vessel at anchor in or near a traffic separation scheme, or in any other congested area, may in addition to her bell signal, sound three blasts in quick succession, namely one short, one prolonged, and one short blast, to give warning of her position and of the possibility of collision to an approaching vessel. The other options are incorrect because A) only the fog signal is required, B) and C) do not match the specific whistle signal prescribed in the regulations.
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