Questions and Answers Practice Questions with Solutions Newest Complete
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Question 1
INLAND ONLY. When a power-driven vessel is leaving a dock or berth, she shall sound:
A) One short blast
B) Two short blasts
C) One prolonged blast
D) Three short blasts
E) Four short blasts
Correct Answer: C) One prolonged blast
Rationale: Rule 34(g) of the Inland Rules states that a power-driven vessel leaving a dock or
berth shall sound one prolonged blast.
Question 2
INLAND ONLY. A power-driven vessel is towing astern with a tow exceeding 200 meters
measuring from her stern to the aft end of the tow. What lights shall be displayed on the
masthead?
A) Green over red
B) Red over green
C) Two masthead lights in a vertical line
D) Three masthead lights in a vertical line
E) One white masthead light and one yellow towing light
Correct Answer: D) Three masthead lights in a vertical line
Rationale: Rule 24(a) states that when a tow exceeds 200 meters, the towing vessel must
display three masthead lights in a vertical line to indicate the length of the tow.
Question 3
INLAND ONLY. You are on a course to cross in front of another vessel which is to your
starboard. You reach a radiotelephone agreement to pass astern of the other vessel. Are you still
obliged by the rules to sound a whistle signal?
A) True
B) False
C) Only if the visibility is restricted
D) Only if the vessel is over 100 meters
E) Only if the other vessel requests it
Correct Answer: B) False
Rationale: Rule 34(h) of the Inland Rules allows vessels to reach an agreement via
radiotelephone. If such an agreement is reached, whistle signals are not required but may
be given.
Question 4
INLAND ONLY. A single barge being pushed ahead shall display which of the following lights?
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A) Sidelights and a special flashing light
B) Sidelights and a stern light
C) Sidelights, a special flashing light, and a stern light
D) Sidelights, a towing light, and a stern light
E) One all-round white light
Correct Answer: A) Sidelights and a special flashing light
Rationale: Rule 24(f)(i) for Inland waters specifies that a vessel being pushed ahead (not
part of a composite unit) shall exhibit sidelights and a special flashing light at the forward
end.
Question 5
BOTH INTERNATIONAL & INLAND. Vessel "B" is overtaking vessel "A." Vessel "A" is the:
A) Overtaking vessel
B) Stand-on vessel
C) Give-way vessel
D) Burdened vessel
E) Vessel not under command
Correct Answer: B) Stand-on vessel
Rationale: Rule 13 states that any vessel overtaking any other shall keep out of the way of
the vessel being overtaken. Therefore, the overtaken vessel (A) is the stand-on vessel.
Question 6
INLAND ONLY. In restricted visibility, vessels underway shall:
A) Proceed at a safe speed for the conditions
B) Have engines ready for immediate maneuvering if she is power-driven
C) Have due regard for the prevailing conditions and circumstances
D) All the above
E) None of the above
Correct Answer: D) All the above
Rationale: Rule 6 (Safe Speed) and Rule 19 (Conduct of Vessels in Restricted Visibility)
require vessels to maintain a safe speed, have engines ready, and operate with caution
based on current visibility.
Question 7
INLAND ONLY. Two power-driven vessels are meeting head-on in a narrow channel so as to
involve risk of collision. Each shall:
A) Alter course to port so as to pass starboard of each other
B) Slow to bare steerageway
C) Alter course to starboard so as to pass port to port
D) Sound 5 blasts and stop or reverse engines
E) Maintain course and speed
Correct Answer: C) Alter course to starboard so as to pass port to port
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Rationale: Rule 14 (Head-on Situation) requires that when two power-driven vessels are
meeting on reciprocal or nearly reciprocal courses, each shall alter her course to starboard
so that each shall pass on the port side of the other.
Question 8
INLAND ONLY. You are towing a partly submerged object; it should be lighted with:
A) A green light
B) All-round white lights
C) A flashing red light
D) Special flashing lights
E) Two masthead lights
Correct Answer: B) All-round white lights
Rationale: Rule 24(g) requires that an inconspicuous, partly submerged vessel or object
being towed shall exhibit all-round white lights at or near the forward and after ends.
Question 9
BOTH INTERNATIONAL & INLAND. In restricted visibility, you hear the fog signal of
another vessel forward of your beam and determine risk of collision may exist. You MUST:
A) Begin a radar plot
B) Stop your engines
C) Reduce to bare steerageway
D) Sound five short and rapid blasts
E) Increase speed to clear the area
Correct Answer: C) Reduce to bare steerageway
Rationale: Rule 19(e) states that except where it has been determined that a risk of collision
does not exist, every vessel which hears apparently forward of her beam the fog signal of
another vessel shall reduce her speed to the minimum at which she can be kept on her
course.
Question 10
INTERNATIONAL ONLY. A vessel under oars may exhibit the following light(s):
A) She must show a sternlight
B) She must show sidelights
C) She must show a fixed all-round white light or at hand have an electric torch
D) She must show a dayshape of a black ball
E) She must show a yellow flashing light
Correct Answer: C) She must show a fixed all-round white light or at hand have an electric
torch
Rationale: Rule 25(d)(ii) states that a vessel under oars may exhibit the lights prescribed in
this Rule for sailing vessels, but if she does not, she shall have ready at hand an electric
torch or lighted lantern showing a white light which shall be exhibited in sufficient time to
prevent collision.