prep Exam Questions and Answers Practice Questions with Solutions Newest
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Question 1
INLAND ONLY: A power-driven vessel is meeting you head-on in a narrow channel. To comply
with the steering and sailing rules, you must:
A) Exchange two short blasts
B) Exchange one short blast
C) Sound one prolonged blast
D) Maintain course and speed
E) Sound three short blasts
Correct Answer: B) Exchange one short blast
Rationale: According to Inland Rule 34(a)(i), when power-driven vessels are in sight of one
another and meeting or crossing at a distance within half a mile of each other, they shall
exchange one short blast to indicate an intention to pass port-to-port.
Question 2
INLAND ONLY: You are pushing a barge ahead which is not part of a rigid composite unit.
Which lights shall be displayed on the barge?
A) Sidelights and a stern light
B) Sidelights and a special flashing light
C) Sidelights, a special flashing light, and a stern light
D) An all-round white light
E) Towing lights and sidelights
Correct Answer: B) Sidelights and a special flashing light
Rationale: Inland Rule 24(f)(i) requires a vessel being pushed ahead, when not part of a
composite unit, to exhibit sidelights and a special flashing light at the forward end. A stern
light is NOT shown because it would be obscured by the towing vessel.
Question 3
BOTH INTERNATIONAL AND INLAND: Any vessel overtaking any other vessel shall:
A) Sound one prolonged blast
B) Become the stand-on vessel
C) Keep out of the way of the vessel being overtaken
D) Pass only on the starboard side
E) Maintain a distance of at least 500 yards
Correct Answer: C) Keep out of the way of the vessel being overtaken
Rationale: Rule 13 (Overtaking) states that notwithstanding anything contained in the
Rules, any vessel overtaking any other shall keep out of the way of the vessel being
overtaken until she is finally past and clear.
Question 4
BOTH INTERNATIONAL AND INLAND: A vessel towing astern with a length of tow that
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exceeds 200 meters will show what masthead lights?
A) 1 white masthead light
B) 2 white masthead lights
C) 3 white masthead lights
D) 4 white masthead lights
E) 1 white and 1 yellow masthead light
Correct Answer: C) 3 white masthead lights
Rationale: Rule 24(a)(i) specifies that if the length of the tow exceeds 200 meters (measured
from the stern of the towing vessel to the after end of the tow), the towing vessel must
exhibit three masthead lights in a vertical line.
Question 5
BOTH INTERNATIONAL AND INLAND: A vessel of less than 20 meters in length may
display two cones with apexes together as a day shape when she is engaged in:
A) Fishing other than trawling
B) Trawling
C) Being towed
D) Not under command
E) Anchoring
Correct Answer: B) Trawling
Rationale: Rule 26(b) states that a vessel engaged in trawling shall exhibit two cones with
apexes together in a vertical line. If the vessel is less than 20 meters, she may use this shape
regardless of whether she is making way or at anchor.
Question 6
BOTH INTERNATIONAL AND INLAND ONLY: A vessel may exhibit lights other than those
prescribed by the rules as long as the additional lights comply with which requirements?
A) They are authorized by the owner
B) They are brighter than the navigation lights
C) They do not interfere with the keeping of a proper lookout
D) They are blue in color
E) They flash at the same rate as the special flashing light
Correct Answer: C) They do not interfere with the keeping of a proper lookout
Rationale: Rule 20(b) states that from sunset to sunrise, no other lights shall be exhibited,
except such lights as cannot be mistaken for the lights specified in these Rules or do not
impair their visibility or distinctive character, or interfere with the keeping of a proper
look-out.
Question 7
INTERNATIONAL ONLY: Two red lights in a vertical line are displayed by a:
A) Vessel engaged in fishing
B) Vessel aground
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C) Vessel not under command
D) Vessel restricted in her ability to maneuver
E) Pilot vessel
Correct Answer: C) A vessel not under command
Rationale: International Rule 27(a)(i) requires a vessel not under command to exhibit two
all-round red lights in a vertical line where they can best be seen.
Question 8
BOTH INTERNATIONAL AND INLAND: You are heading due south and see an all-round
white light on a vessel directly ahead. This vessel is:
A) Overtaking you
B) A sailing vessel
C) At anchor
D) Not under command
E) Constrained by draft
Correct Answer: C) At anchor
Rationale: Rule 30 requires a vessel at anchor to exhibit an all-round white light. If you see
only an all-round white light, and no sidelights, it is most likely a vessel at anchor (or a
vessel of less than 7 meters).
Question 9
BOTH INTERNATIONAL AND INLAND: A tug is towing three manned barges in line in fog.
The first barge should sound:
A) One prolonged and two short blasts
B) One prolonged and three short blasts
C) No fog signal
D) Five short blasts
E) Rapid ringing of a bell
Correct Answer: C) No fog signal
Rationale: Rule 35(h) states that only the LAST vessel of the tow, if manned, shall sound the
signal (one prolonged followed by three short blasts). Intermediate vessels in the tow do not
sound signals.
Question 10
BOTH INTERNATIONAL AND INLAND: A vessel approaches you at night on your starboard
side showing red over green lights. These indicate a:
A) Power-driven vessel
B) Vessel engaged in fishing
C) Sailing vessel
D) Pilot vessel
E) Vessel restricted in her ability to maneuver
Correct Answer: C) Sailing vessel