Question 1 of 10
Vessels in sight of one another. Which signal means: "I am altering my course to starboard"?
Correct!Not quite. The answer is D.
I am altering my course to starboard. Rule 34(a)
Sound signals quiz
Ten questions on Rules 32 to 35: manoeuvring, warning and fog signals. A long bar is a prolonged blast, a short one a short blast.
10 questions · answers explained · no sign-up
Question 2 of 10
Vessels in sight of one another. Which signal means: "Agreement: the vessel about to be overtaken agrees"?
Correct!Not quite. The answer is D.
Agreement: the vessel about to be overtaken agrees. Rule 34(c)(ii)
Question 3 of 10
In restricted visibility. Which signal means: "Vessel not under command, restricted in her ability to manoeuvre, constrained by her draught, sailing, engaged in fishing, or towing or pushing"?
Correct!Not quite. The answer is A.
Vessel not under command, restricted in her ability to manoeuvre, constrained by her draught, sailing, engaged in fishing, or towing or pushing. At intervals of not more than 2 minutes. Also used by a vessel engaged in fishing or restricted in her ability to manoeuvre when at anchor (35(d)). Rule 35(c)
Question 4 of 10
In restricted visibility. Which signal means: "Vessel at anchor, 100 m or more"?
Correct!Not quite. The answer is D.
bell ×5 sgong Vessel at anchor, 100 m or more. The bell is rung in the forepart, followed by rapid sounding of the gong in the after part. Rule 35(g)
Question 5 of 10
You are a power-driven vessel underway. Another vessel is in sight, and you alter course to starboard as the Rules require. Which signal do you give?
Correct!Not quite. The answer is B.
I am altering my course to starboard. Rule 34(a)
Question 6 of 10
In a narrow channel you want to overtake the vessel ahead, passing on HER port side. She has to act to let you pass. Which signal do you give?
Correct!Not quite. The answer is D.
I intend to overtake you on your port side. Used in a narrow channel or fairway. Rule 34(c)(i)
Question 7 of 10
Another vessel is approaching and you cannot understand what she intends to do, or you doubt she is doing enough to avoid a collision. Which signal do you give?
Correct!Not quite. The answer is D.
I fail to understand your intentions, or doubt that you are taking enough action to avoid collision. At least five short and rapid blasts. It may be supplemented by at least five short and rapid flashes. Rule 34(d)
Question 8 of 10
Fog. You are a power-driven vessel making way through the water. Which signal do you give?
Correct!Not quite. The answer is B.
Power-driven vessel making way through the water. At intervals of not more than 2 minutes. Rule 35(a)
Question 9 of 10
How long is a "short blast"?
Correct!Not quite. The answer is About 1 second.
Rule 32(b): the word "short blast" means a blast of about one second's duration. (Rule 32(b))
Question 10 of 10
The "doubt" signal of at least five short and rapid blasts may be supplemented by a light signal of:
Correct!Not quite. The answer is At least five short and rapid flashes.
Rule 34(d): the whistle signal may be supplemented by a light signal of at least five short and rapid flashes. (Rule 34(d))
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