OUPV Navigation Rules Exam Prep
2025 Questions and Answers
What whistle signal would you sound, if you were coming up on another vessel dead
astern and desired to overtake on the other vessels starboard side? - ✔✔One short blast
When meeting another vessel on or near reciprocal courses, what is the meaning of two
short blasts? - ✔✔I intend to leave you on my starboard side.
In a narrow channel, when intending to overtake another power-driven vessel on her
starboard side, you would sound a whistle signal of: - ✔✔One short blast
What whistle signal must a power-driven vessel give when backing out of a berth with
another vessel in sight? - ✔✔3 short blasts.
At night, you observe a light signal consisting of two flashes by a vessel indicates: -
✔✔The intent to leave another vessel to her starboard
When not being part of a vessel rigidly connected in a composite unit, what lights are
required for a barge being pushed ahead? - ✔✔Sidelights and a special flashing light.
A vessel constrained by draft: - ✔✔Is not contained in the Inland nav rules.
A power driven vessel, when leaving a berth or dock, is required to sound which
whistle signal: - ✔✔one prolonged blast
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1
, At night you are underway, and see two yellow lights displayed in a vertical line. This
should indicate - ✔✔vessel towing by pushing ahead
You are meeting near-on with another vessel in shoreward waters, and she sounds one
short blast on the whistle. This means that she: - ✔✔intends to leave you on her port
side
A light display will mark the opening in a dredge pipeline where all vessels may pass
through. Which display is this? - ✔✔Two red lights in a vertical line on each side of the
opening.
A "special flashing light" has which characteristics? - ✔✔It must be placed as nearly as
practicable on the fore and aft center line of tow.
At night, you are pushing a barge straight ahead, what lights should show aft on your
vessel? - ✔✔Two towing lights
A barge being towed astern must display after sunset: - ✔✔Sidelights and a stern light
A power-driven vessel underway, not making way in restricted visibility must sound
what whistle signal? - ✔✔Two prolonged blasts
A sailing vessel underway, in addition to sidelights and sternlight exhibit: - ✔✔A red
light over a green light at the mast head
A trawling vessel shall display after sunset: - ✔✔green light over a white light
The term "Vessel not under command" as defined in the rules are due to: - ✔✔some
exceptional circumstance is unable to maneuver as required by the rules
The term "restricted in her ability to maneuver" as defined in the rules is due: - ✔✔the
nature of her work is unable to maneuver as required by the rules
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 2
2025 Questions and Answers
What whistle signal would you sound, if you were coming up on another vessel dead
astern and desired to overtake on the other vessels starboard side? - ✔✔One short blast
When meeting another vessel on or near reciprocal courses, what is the meaning of two
short blasts? - ✔✔I intend to leave you on my starboard side.
In a narrow channel, when intending to overtake another power-driven vessel on her
starboard side, you would sound a whistle signal of: - ✔✔One short blast
What whistle signal must a power-driven vessel give when backing out of a berth with
another vessel in sight? - ✔✔3 short blasts.
At night, you observe a light signal consisting of two flashes by a vessel indicates: -
✔✔The intent to leave another vessel to her starboard
When not being part of a vessel rigidly connected in a composite unit, what lights are
required for a barge being pushed ahead? - ✔✔Sidelights and a special flashing light.
A vessel constrained by draft: - ✔✔Is not contained in the Inland nav rules.
A power driven vessel, when leaving a berth or dock, is required to sound which
whistle signal: - ✔✔one prolonged blast
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1
, At night you are underway, and see two yellow lights displayed in a vertical line. This
should indicate - ✔✔vessel towing by pushing ahead
You are meeting near-on with another vessel in shoreward waters, and she sounds one
short blast on the whistle. This means that she: - ✔✔intends to leave you on her port
side
A light display will mark the opening in a dredge pipeline where all vessels may pass
through. Which display is this? - ✔✔Two red lights in a vertical line on each side of the
opening.
A "special flashing light" has which characteristics? - ✔✔It must be placed as nearly as
practicable on the fore and aft center line of tow.
At night, you are pushing a barge straight ahead, what lights should show aft on your
vessel? - ✔✔Two towing lights
A barge being towed astern must display after sunset: - ✔✔Sidelights and a stern light
A power-driven vessel underway, not making way in restricted visibility must sound
what whistle signal? - ✔✔Two prolonged blasts
A sailing vessel underway, in addition to sidelights and sternlight exhibit: - ✔✔A red
light over a green light at the mast head
A trawling vessel shall display after sunset: - ✔✔green light over a white light
The term "Vessel not under command" as defined in the rules are due to: - ✔✔some
exceptional circumstance is unable to maneuver as required by the rules
The term "restricted in her ability to maneuver" as defined in the rules is due: - ✔✔the
nature of her work is unable to maneuver as required by the rules
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 2
