OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
Question 1: What is the primary purpose of the Navigation Rules (Rules of the
Road)?
A. To establish speed limits for all vessels
B. To prevent collisions between vessels on the water
C. To determine licensing requirements for vessel operators
D. To regulate commercial fishing activities
CORRECT ANSWER: B. To prevent collisions between vessels on the water
RATIONALE:The Navigation Rules, also known as COLREGs (International Regulations
for Preventing Collisions at Sea) and Inland Rules, are specifically designed to establish
standardized procedures for vessel operation to prevent collisions. These rules govern
vessel conduct regarding lights, shapes, sound signals, steering, and sailing
requirements to ensure safe navigation and avoid accidents on navigable waters.
Question 2: Which vessel is considered "underway" according to the Navigation
Rules?
A. A vessel at anchor with its engine running
B. A vessel made fast to a dock
C. A vessel aground with engines off
D. A vessel not at anchor, not made fast to the shore, and not aground
CORRECT ANSWER: D. A vessel not at anchor, not made fast to the shore, and not
aground
RATIONALE:Rule 3(i) of the Navigation Rules defines "underway" as a vessel that is not
at anchor, not made fast to the shore, and not aground. This definition is critical
because many steering and sailing rules apply specifically to vessels that are underway,
regardless of whether they are making way through the water or drifting.
Question 3: What does a vessel displaying three red lights in a vertical line
indicate?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: C. A vessel not under command
RATIONALE:According to Rule 27(a)(ii) of the Navigation
,OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
Thinking completed
Question 1: What is the primary purpose of the Navigation Rules (Rules of the
Road)?
A. To establish speed limits for all vessels
B. To prevent collisions between vessels on the water
C. To determine licensing requirements for vessel operators
D. To regulate commercial fishing activities
CORRECT ANSWER: B. To prevent collisions between vessels on the water
RATIONALE:The Navigation Rules, also known as COLREGs (International Regulations
for Preventing Collisions at Sea) and Inland Rules, are specifically designed to establish
standardized procedures for vessel operation to prevent collisions. These rules govern
vessel conduct regarding lights, shapes, sound signals, steering, and sailing
requirements to ensure safe navigation and avoid accidents on navigable waters.
Question 2: Which vessel is considered "underway" according to the Navigation
Rules?
A. A vessel at anchor with its engine running
B. A vessel made fast to a dock
C. A vessel aground with engines off
D. A vessel not at anchor, not made fast to the shore, and not aground
CORRECT ANSWER: D. A vessel not at anchor, not made fast to the shore, and not
aground
RATIONALE:Rule 3(i) of the Navigation Rules defines "underway" as a vessel that is not
at anchor, not made fast to the shore, and not aground. This definition is critical
because many steering and sailing rules apply specifically to vessels that are underway,
regardless of whether they are making way through the water or drifting.
Question 3: What does a vessel displaying three red lights in a vertical line
indicate?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: C. A vessel not under command
,OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
RATIONALE:According to Rule 27(a)(ii) of the Navigation Rules, a vessel not under
command shall exhibit two all-round red lights in a vertical line. However, three red
lights vertically indicates a vessel constrained by her draft in inland waters only. For
international waters, a vessel constrained by draft displays three all-round red lights.
Since the question specifies three red lights, and considering OUPV operations
primarily in U.S. inland waters, this indicates a vessel constrained by draft in inland
rules context. Correction: Actually, Rule 28 states a vessel constrained by her draft may
exhibit three all-round red lights in a vertical line. A vessel not under command displays
two all-round red lights. Therefore, three red lights vertically indicates a vessel
constrained by her draft. The correct answer is D. Let me revise this question for
accuracy.
Question 3: What does a vessel displaying three all-round red lights in a vertical
line indicate under the Inland Navigation Rules?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing with gear extending more than 150 meters
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: D. A vessel constrained by her draft
RATIONALE:Under Rule 28 of the Inland Navigation Rules, a vessel constrained by her
draft may exhibit three all-round red lights in a vertical line, or a cylinder shape. This
signal indicates that due to the vessel's draft in relation to available depth of water, her
ability to deviate from her course is severely restricted. This is distinct from a vessel not
under command (two red lights) or restricted in ability to maneuver (red-white-red
lights).
Question 4: When two power-driven vessels are meeting head-on, what action
must each vessel take?
A. The vessel on the starboard side must give way
B. Both vessels must alter course to starboard
C. The vessel with the larger tonnage has right of way
D. Both vessels must stop engines and wait for the other to pass
CORRECT ANSWER: B. Both vessels must alter course to starboard
RATIONALE:Rule 14 of the Navigation Rules states that when two power-driven vessels
are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision,
each shall alter her course to starboard so that each shall pass on the port side of the
, OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
other. This is a fundamental head-on situation rule designed to create predictable,
standardized maneuvering to avoid collision.
Question 5: What sound signal must a power-driven vessel underway make in
restricted visibility?
A. One prolonged blast at intervals of not more than 1 minute
B. One prolonged blast at intervals of not more than 2 minutes
C. Two prolonged blasts at intervals of not more than 2 minutes
D. One short, one prolonged, and one short blast at intervals of not more than 2 minutes
CORRECT ANSWER: B. One prolonged blast at intervals of not more than 2 minutes
RATIONALE:Rule 35(c) of the Navigation Rules requires a power-driven vessel making
way through the water in restricted visibility to sound one prolonged blast at intervals of
not more than 2 minutes. A prolonged blast lasts 4-6 seconds. This signal alerts other
vessels to the presence and movement of the vessel in conditions where visual contact
is impaired.
Question 6: Which vessel has right of way when a sailing vessel and a power-driven
vessel are approaching each other with risk of collision?
A. The power-driven vessel always has right of way
B. The sailing vessel always has right of way
C. The vessel to windward has right of way
D. The vessel that is larger has right of way
CORRECT ANSWER: B. The sailing vessel always has right of way
RATIONALE:Rule 18(a)(i) establishes that a sailing vessel underway shall keep out of
the way of a vessel not under command, restricted in ability to maneuver, or engaged in
fishing. However, Rule 18(b) states that a power-driven vessel underway shall keep out
of the way of a sailing vessel. Therefore, in a meeting situation between a standard
sailing vessel and a standard power-driven vessel, the power-driven vessel is the give-
way vessel and the sailing vessel is the stand-on vessel.
Question 7: What does a white all-round light displayed by a vessel at anchor
indicate?
A. The vessel is engaged in fishing
B. The vessel is at anchor
C. The vessel is not under command
D. The vessel is a pilot vessel
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
Question 1: What is the primary purpose of the Navigation Rules (Rules of the
Road)?
A. To establish speed limits for all vessels
B. To prevent collisions between vessels on the water
C. To determine licensing requirements for vessel operators
D. To regulate commercial fishing activities
CORRECT ANSWER: B. To prevent collisions between vessels on the water
RATIONALE:The Navigation Rules, also known as COLREGs (International Regulations
for Preventing Collisions at Sea) and Inland Rules, are specifically designed to establish
standardized procedures for vessel operation to prevent collisions. These rules govern
vessel conduct regarding lights, shapes, sound signals, steering, and sailing
requirements to ensure safe navigation and avoid accidents on navigable waters.
Question 2: Which vessel is considered "underway" according to the Navigation
Rules?
A. A vessel at anchor with its engine running
B. A vessel made fast to a dock
C. A vessel aground with engines off
D. A vessel not at anchor, not made fast to the shore, and not aground
CORRECT ANSWER: D. A vessel not at anchor, not made fast to the shore, and not
aground
RATIONALE:Rule 3(i) of the Navigation Rules defines "underway" as a vessel that is not
at anchor, not made fast to the shore, and not aground. This definition is critical
because many steering and sailing rules apply specifically to vessels that are underway,
regardless of whether they are making way through the water or drifting.
Question 3: What does a vessel displaying three red lights in a vertical line
indicate?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: C. A vessel not under command
RATIONALE:According to Rule 27(a)(ii) of the Navigation
,OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
Thinking completed
Question 1: What is the primary purpose of the Navigation Rules (Rules of the
Road)?
A. To establish speed limits for all vessels
B. To prevent collisions between vessels on the water
C. To determine licensing requirements for vessel operators
D. To regulate commercial fishing activities
CORRECT ANSWER: B. To prevent collisions between vessels on the water
RATIONALE:The Navigation Rules, also known as COLREGs (International Regulations
for Preventing Collisions at Sea) and Inland Rules, are specifically designed to establish
standardized procedures for vessel operation to prevent collisions. These rules govern
vessel conduct regarding lights, shapes, sound signals, steering, and sailing
requirements to ensure safe navigation and avoid accidents on navigable waters.
Question 2: Which vessel is considered "underway" according to the Navigation
Rules?
A. A vessel at anchor with its engine running
B. A vessel made fast to a dock
C. A vessel aground with engines off
D. A vessel not at anchor, not made fast to the shore, and not aground
CORRECT ANSWER: D. A vessel not at anchor, not made fast to the shore, and not
aground
RATIONALE:Rule 3(i) of the Navigation Rules defines "underway" as a vessel that is not
at anchor, not made fast to the shore, and not aground. This definition is critical
because many steering and sailing rules apply specifically to vessels that are underway,
regardless of whether they are making way through the water or drifting.
Question 3: What does a vessel displaying three red lights in a vertical line
indicate?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: C. A vessel not under command
,OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
RATIONALE:According to Rule 27(a)(ii) of the Navigation Rules, a vessel not under
command shall exhibit two all-round red lights in a vertical line. However, three red
lights vertically indicates a vessel constrained by her draft in inland waters only. For
international waters, a vessel constrained by draft displays three all-round red lights.
Since the question specifies three red lights, and considering OUPV operations
primarily in U.S. inland waters, this indicates a vessel constrained by draft in inland
rules context. Correction: Actually, Rule 28 states a vessel constrained by her draft may
exhibit three all-round red lights in a vertical line. A vessel not under command displays
two all-round red lights. Therefore, three red lights vertically indicates a vessel
constrained by her draft. The correct answer is D. Let me revise this question for
accuracy.
Question 3: What does a vessel displaying three all-round red lights in a vertical
line indicate under the Inland Navigation Rules?
A. A vessel restricted in her ability to maneuver
B. A vessel engaged in fishing with gear extending more than 150 meters
C. A vessel not under command
D. A vessel constrained by her draft
CORRECT ANSWER: D. A vessel constrained by her draft
RATIONALE:Under Rule 28 of the Inland Navigation Rules, a vessel constrained by her
draft may exhibit three all-round red lights in a vertical line, or a cylinder shape. This
signal indicates that due to the vessel's draft in relation to available depth of water, her
ability to deviate from her course is severely restricted. This is distinct from a vessel not
under command (two red lights) or restricted in ability to maneuver (red-white-red
lights).
Question 4: When two power-driven vessels are meeting head-on, what action
must each vessel take?
A. The vessel on the starboard side must give way
B. Both vessels must alter course to starboard
C. The vessel with the larger tonnage has right of way
D. Both vessels must stop engines and wait for the other to pass
CORRECT ANSWER: B. Both vessels must alter course to starboard
RATIONALE:Rule 14 of the Navigation Rules states that when two power-driven vessels
are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision,
each shall alter her course to starboard so that each shall pass on the port side of the
, OUPV Rules Of The Road Exam Practice Test – Fall Semester 2026
Updated 2026 Complete Study Guide with Verified Questions and Detailed
Rationales Covering Navigation Rules, Right of Way, Inland & International
Waters, Lights & Shapes, Sound Signals, Steering & Sailing Rules,
Collision Avoidance, and USCG Regulations for OUPV Captain’s License
Success
other. This is a fundamental head-on situation rule designed to create predictable,
standardized maneuvering to avoid collision.
Question 5: What sound signal must a power-driven vessel underway make in
restricted visibility?
A. One prolonged blast at intervals of not more than 1 minute
B. One prolonged blast at intervals of not more than 2 minutes
C. Two prolonged blasts at intervals of not more than 2 minutes
D. One short, one prolonged, and one short blast at intervals of not more than 2 minutes
CORRECT ANSWER: B. One prolonged blast at intervals of not more than 2 minutes
RATIONALE:Rule 35(c) of the Navigation Rules requires a power-driven vessel making
way through the water in restricted visibility to sound one prolonged blast at intervals of
not more than 2 minutes. A prolonged blast lasts 4-6 seconds. This signal alerts other
vessels to the presence and movement of the vessel in conditions where visual contact
is impaired.
Question 6: Which vessel has right of way when a sailing vessel and a power-driven
vessel are approaching each other with risk of collision?
A. The power-driven vessel always has right of way
B. The sailing vessel always has right of way
C. The vessel to windward has right of way
D. The vessel that is larger has right of way
CORRECT ANSWER: B. The sailing vessel always has right of way
RATIONALE:Rule 18(a)(i) establishes that a sailing vessel underway shall keep out of
the way of a vessel not under command, restricted in ability to maneuver, or engaged in
fishing. However, Rule 18(b) states that a power-driven vessel underway shall keep out
of the way of a sailing vessel. Therefore, in a meeting situation between a standard
sailing vessel and a standard power-driven vessel, the power-driven vessel is the give-
way vessel and the sailing vessel is the stand-on vessel.
Question 7: What does a white all-round light displayed by a vessel at anchor
indicate?
A. The vessel is engaged in fishing
B. The vessel is at anchor
C. The vessel is not under command
D. The vessel is a pilot vessel
