OUPV / Six-Pack Captain's License — Questions and Answers

Question 1: Which of the following instructions must be included in the abandon ship drill for all persons onboard?

How to retrieve personal belongings quickly.
How to operate the vessel's main engine.
The designated location for the ship's documents.
The proper method for donning a life jacket. (Correct answer)

Correct answer: The proper method for donning a life jacket.

A fundamental and critical part of any abandon ship drill is ensuring every person on board knows how to correctly don their life jacket. This is a primary piece of survival equipment and its correct use is vital for safety.

Question 2: What is restricted visibility under the Navigation Rules?

Only fog below 100 yards visibility
Visibility less than 1 nautical mile
Any condition in which visibility is restricted by fog, mist, rain, snow, sandstorm, or similar causes (Correct answer)
Darkness at night

Correct answer: Any condition in which visibility is restricted by fog, mist, rain, snow, sandstorm, or similar causes

Restricted visibility includes any condition that reduces visibility, including fog, heavy rain, snow, mist, or sandstorm. Night darkness alone is not restricted visibility.

Question 3: What is the maximum number of passengers an Uninspected Passenger Vessel (UPV) can carry?

15 passengers
12 passengers
20 passengers
6 passengers (Correct answer)

Correct answer: 6 passengers

An Operator of Uninspected Passenger Vessels (OUPV) license, often called a 'Six-Pack' license, permits the holder to carry up to six passengers for hire on an uninspected vessel. This is a specific limitation for uninspected vessels under U.S. Coast Guard regulations. Vessels carrying more than six passengers for hire typically require a higher-level license and more stringent inspection.

Question 4: How should a vessel approach a person in the water for recovery?

Circle continuously until Coast Guard arrives
Approach from upwind at maximum speed
Approach slowly from downwind/downcurrent, keeping the person on the lee side to provide shelter (Correct answer)
At full speed directly toward them

Correct answer: Approach slowly from downwind/downcurrent, keeping the person on the lee side to provide shelter

The recovery approach should be from downwind/downcurrent with the person on the vessels lee side, which provides calmer water and prevents drift onto the person.

Question 5: Under what circumstances can the Coast Guard suspend or revoke an OUPV license?

Only if the vessel sinks
For misconduct, negligence, incompetence, violation of regulations, use of drugs or alcohol, or conviction of certain offenses (Correct answer)
Licenses cannot be revoked once issued
Only for criminal activity unrelated to boating

Correct answer: For misconduct, negligence, incompetence, violation of regulations, use of drugs or alcohol, or conviction of certain offenses

The USCG can suspend or revoke an OUPV license for professional misconduct, negligence, incompetence, regulatory violations, substance abuse, or conviction of serious offenses.

Question 6: What is the maximum transmitting power of a handheld portable VHF marine radio?

1 watt
25 watts
10 watts
5 watts (Correct answer)

Correct answer: 5 watts

Handheld VHF radios are limited to 5 watts of transmitting power, while fixed-mount radios may transmit at up to 25 watts.

Question 7: What safety briefing is an OUPV operator required to provide to passengers before departing?

Proof of vessel insurance documentation
A signed liability waiver form
Location and use of life jackets and emergency equipment (Correct answer)
A printed trip itinerary only

Correct answer: Location and use of life jackets and emergency equipment

Federal regulations require operators to brief all passengers on the location and proper donning of life jackets and the location of other emergency equipment before getting underway.

Question 8: What is the best way to reduce the risk of fire on a boat?

Use gasoline instead of diesel
Ensure proper ventilation and avoid fuel leaks (Correct answer)
Limit the number of passengers
Keep a fire extinguisher on board

Correct answer: Ensure proper ventilation and avoid fuel leaks

The best way to reduce the risk of fire on a boat is to prevent the accumulation of flammable vapors and ignition sources. Proper ventilation disperses fuel fumes, while avoiding fuel leaks eliminates the source of these vapors. While a fire extinguisher is crucial for fighting fires, prevention through good maintenance and ventilation is paramount.

Question 9: What is the maximum number of paying passengers an OUPV license holder is authorized to carry at one time?

12 passengers
10 passengers
8 passengers
6 passengers (Correct answer)

Correct answer: 6 passengers

The OUPV license, informally called the Six-Pack license, limits the operator to carrying no more than 6 passengers for hire.

Question 10: What maintenance should be performed on through-hull fittings regularly?

Inspect for corrosion, ensure seacocks operate freely, and check hose clamps (Correct answer)
Paint them with standard hull paint
Replace them only when the vessel is hauled every 5 years
They never need maintenance once installed

Correct answer: Inspect for corrosion, ensure seacocks operate freely, and check hose clamps

Through-hull fittings and seacocks must be regularly inspected for corrosion, tested for operation, and their hose connections checked to prevent flooding.

Question 11: When navigating at night, what do two vertical red lights on a vessel indicate?

Vessel engaged in fishing
Vessel restricted in ability to maneuver
Vessel not under command (Correct answer)
Vessel at anchor

Correct answer: Vessel not under command

Two red lights in a vertical line indicate a vessel that is not under command (unable to maneuver as required by the Rules).

Question 12: What does a veering wind mean?

A wind that shifts direction counterclockwise
A wind that shifts direction clockwise (Correct answer)
A wind that suddenly stops
A wind that increases in speed

Correct answer: A wind that shifts direction clockwise

A veering wind shifts clockwise. This typically indicates improving weather conditions in the Northern Hemisphere.

Question 13: On a nautical chart for U.S. waters (IALA-B), you are returning from sea and see a green and red horizontally banded buoy with the top band being green. The shape is conical (a nun buoy). What does this buoy indicate?

An isolated danger, pass well clear on any side.
The preferred channel is to port, with the secondary channel to starboard.
The preferred channel is to starboard, with the secondary channel to port. (Correct answer)
A safe water mark, proceed with caution.

Correct answer: The preferred channel is to starboard, with the secondary channel to port.

In the IALA-B system used in the U.S., red and green horizontally banded buoys mark a junction where the channel splits (a preferred channel buoy). The top color indicates the primary or preferred channel. Since the top band is green and you are returning from sea ('Red Right Returning'), the preferred channel is to starboard (you would keep this buoy on your port side).

Question 14: What is the legal significance of the USCG capacity plate found on small passenger vessels?

It is a decorative marking provided only for informational purposes
It only matters in rough sea conditions above Force 5
It applies only to commercial cargo vessels, not passenger boats
It establishes the maximum number of persons, total weight, and horsepower that must not be exceeded (Correct answer)

Correct answer: It establishes the maximum number of persons, total weight, and horsepower that must not be exceeded

The USCG-required capacity plate sets legally enforceable limits on the number of persons, total weight, and motor power to ensure the vessel remains stable and safe.

Question 15: In a crossing situation between two power-driven vessels, which of the following statements correctly describes the responsibility of the give-way vessel?

It must maintain course and speed until a collision is imminent.
It should expect the stand-on vessel to maneuver first.
It is the vessel that has the other on its own port side.
It must take early and substantial action to keep well clear. (Correct answer)

Correct answer: It must take early and substantial action to keep well clear.

In a crossing situation, the vessel which has the other on her own starboard side is the give-way vessel. The give-way vessel is required to take early and substantial action to keep well clear of the stand-on vessel, which should maintain its course and speed.

Question 16: Under the Navigation Rules, what is the obligation of an overtaking vessel?

The overtaking vessel must keep clear of the vessel being overtaken (Correct answer)
The faster vessel always has right of way
Both vessels share equal responsibility
The vessel being overtaken must yield

Correct answer: The overtaking vessel must keep clear of the vessel being overtaken

An overtaking vessel is always the give-way vessel and must keep well clear of the vessel being overtaken.

Question 17: What is lee helm and when is it dangerous?

A method of anchoring
A tendency for the vessel to turn away from the wind, requiring constant correction (Correct answer)
A type of emergency tiller
Steering from the protected side of the vessel

Correct answer: A tendency for the vessel to turn away from the wind, requiring constant correction

Lee helm is a vessels tendency to turn away from the wind. It is dangerous because if the helm is released, the vessel turns beam-to the wind and waves.

Question 18: Which of the following vessels has the highest priority or 'right of way' according to the general hierarchy established in Rule 18?

A vessel not under command. (Correct answer)
A vessel engaged in fishing.
A power-driven vessel.
A sailing vessel.

Correct answer: A vessel not under command.

Rule 18 establishes a hierarchy of responsibility. A power-driven vessel underway shall keep out of the way of a sailing vessel, a vessel engaged in fishing, a vessel restricted in her ability to maneuver, and a vessel not under command. A vessel not under command is at the top of this hierarchy, meaning other vessels must keep clear of it.

Question 19: What is the proper procedure for checking a portable fire extinguishers readiness?

Check the pressure gauge, safety pin, and look for physical damage (Correct answer)
Weigh it on a scale only
Discharge a small amount to test it
Shake it vigorously and listen for contents

Correct answer: Check the pressure gauge, safety pin, and look for physical damage

A portable fire extinguisher should be checked by verifying the pressure gauge is in the green zone, the safety pin is intact, and there is no physical damage or corrosion.

Question 20: What type of documentation is acceptable to verify sea service days on an OUPV application?

Social media posts showing time spent on the water
Signed sea service letters from vessel operators or owners on company letterhead (Correct answer)
Personal diary or journal entries
GPS tracking logs from a personal phone

Correct answer: Signed sea service letters from vessel operators or owners on company letterhead

Sea service must be documented with signed letters from the vessel's operator, owner, or employer that identify dates, waters served, and duties performed.

Question 21: Which type of fog forms when warm, moist air moves over a cooler surface?

Advection fog (Correct answer)
Upslope fog
Evaporation fog
Radiation fog

Correct answer: Advection fog

Advection fog forms when warm, moist air moves horizontally over a cooler surface, such as cold water or land. As the warm air passes over the colder surface, it cools to its dew point, causing the water vapor to condense into fog. This type of fog is common in coastal areas where warm, moist air from the ocean moves over cooler land or vice-versa.

Question 22: According to the Beaufort Wind Scale, a wind force of 6 is described as a 'Strong Breeze' with wind speeds of 22-27 knots. What is the corresponding sea state?

Moderate waves, many white horses, and some spray.
Small wavelets with glassy crests; no breaking.
Large waves begin to form; white foam crests are extensive; spray is likely. (Correct answer)
Sea is like a mirror; ripples are present.

Correct answer: Large waves begin to form; white foam crests are extensive; spray is likely.

A Beaufort Force 6 corresponds to a 'Strong Breeze' (22-27 knots). The sea state associated with this force is characterized by the formation of large waves, extensive white foam crests, and a higher probability of sea spray.

Question 23: What pollution regulations apply to OUPV vessels regarding discharge of oil or oily waste?

Small vessels are exempt from pollution regulations
No oil or oily waste may be discharged into navigable waters of the United States (Correct answer)
A small amount of discharge is acceptable
Regulations only apply in designated marine sanctuaries

Correct answer: No oil or oily waste may be discharged into navigable waters of the United States

Federal law prohibits the discharge of oil or oily waste into navigable U.S. waters. All vessels must comply.

Question 24: On what frequency do 406 MHz EPIRBs transmit for detection by COSPAS-SARSAT satellites?

156.8 MHz (VHF Channel 16)
2182 kHz (HF distress frequency)
121.5 MHz (aviation homing frequency)
406 MHz (Correct answer)

Correct answer: 406 MHz

Modern Category I and II EPIRBs transmit on 406 MHz, which is detected by COSPAS-SARSAT satellites that relay distress alerts with position data to rescue authorities.

Question 25: What is a NOAA Weather Radio and why is it important for OUPV operations?

A continuous broadcast of weather information, forecasts, and warnings for marine areas (Correct answer)
An emergency-only channel that is normally silent
A commercial music station
A satellite phone service

Correct answer: A continuous broadcast of weather information, forecasts, and warnings for marine areas

NOAA Weather Radio provides continuous broadcasts of marine weather observations, forecasts, and hazard warnings.

Question 26: How does the magnetic variation change across a navigational area?

It changes based on geographic location due to the offset between true and magnetic north poles (Correct answer)
It depends on the vessels speed
It remains constant everywhere
It only changes with the seasons

Correct answer: It changes based on geographic location due to the offset between true and magnetic north poles

Magnetic variation differs by geographic location because the magnetic north pole is offset from the geographic north pole.

Question 27: In a head-on meeting situation, what action must both vessels take?

The vessel on the right has priority
Both vessels must alter course to starboard to pass port-to-port (Correct answer)
Both vessels must stop
The smaller vessel must give way

Correct answer: Both vessels must alter course to starboard to pass port-to-port

When two power-driven vessels meet head-on, both must alter course to starboard so they pass on each others port side.

Question 28: You are the operator of a 45-foot uninspected passenger vessel. According to USCG regulations for a vessel of this size, what is the MINIMUM required carriage of portable fire extinguishers?

Two B-I extinguishers or one B-II extinguisher.
One B-I extinguisher.
Three B-I extinguishers or one B-I and one B-II extinguisher. (Correct answer)
One B-II extinguisher.

Correct answer: Three B-I extinguishers or one B-I and one B-II extinguisher.

For motorboats between 40 and 65 feet in length, the USCG requires a minimum of three B-I type portable fire extinguishers. Alternatively, one B-II and one B-I extinguisher can be carried to meet the requirement.

Question 29: What lights must a power-driven vessel under 50 meters display at night while underway?

Masthead light, sidelights (red and green), and a sternlight (Correct answer)
A single all-round white light
Only a stern light
Two red lights vertically

Correct answer: Masthead light, sidelights (red and green), and a sternlight

A power-driven vessel under 50 meters underway must display a masthead light, port (red) and starboard (green) sidelights, and a white stern light.

Question 30: In the NATO phonetic alphabet used in marine radio communications, what word represents the letter 'M'?

Metro
Mike (Correct answer)
Marco
Mary

Correct answer: Mike

The NATO phonetic alphabet, which is the international standard for marine radio communications, uses 'Mike' for the letter M.

Question 31: Which vessel must give way when a sailing vessel and a power-driven vessel are crossing?

The power-driven vessel must give way to the sailing vessel (Correct answer)
The sailing vessel always gives way
Neither vessel has priority
The vessel on the port side gives way

Correct answer: The power-driven vessel must give way to the sailing vessel

Under Rule 18, a power-driven vessel must keep clear of a sailing vessel, except when the sailing vessel is overtaking.

Question 32: Which navigational aid marks the edges of channels and indicates safe water?

Lighthouses
Daymarks
Buoys
All of the above (Correct answer)

Correct answer: All of the above

Buoys, lighthouses, and daymarks are all crucial navigational aids that mark the edges of channels and indicate safe water. Buoys are floating markers, lighthouses are fixed structures with powerful lights, and daymarks are fixed, unlit structures with distinct shapes and colors. Together, they provide visual cues that guide mariners safely through waterways, helping them avoid hazards and stay within designated channels.

Question 33: As the operator of an OUPV, you are required to conduct safety drills with your crew. What is the minimum frequency for conducting these drills, including man overboard and fire drills?

Only when new crew members are hired.
At least once per week.
Before the first voyage of the day.
At least once per month. (Correct answer)

Correct answer: At least once per month.

Regulations require the master of a vessel to conduct safety drills with the crew at least once each month. These drills must cover actions to be taken in emergencies such as fire, man overboard, and abandoning ship. A record of these drills should be maintained.

Question 34: Before getting underway with passengers, the operator of an uninspected passenger vessel must provide a safety orientation. Which of the following is NOT a required topic for this briefing?

The location and contents of the Emergency Checkoff List.
The proper method of donning and adjusting life preservers.
The location of the vessel's Certificate of Documentation. (Correct answer)
Stowage locations of life preservers.

Correct answer: The location of the vessel's Certificate of Documentation.

According to 46 CFR 26.03-1, the safety orientation must cover the stowage and proper use of PFDs, the location of other lifesaving devices, and the location of the emergency instructions. The vessel's documentation is not a required part of the passenger safety briefing.

Question 35: What is the definition of passenger for hire under USCG regulations?

Any person not part of the regular crew
Anyone aboard a vessel
Only someone who purchased a ticket
A person who has contributed consideration (money, goods, or services) for the voyage (Correct answer)

Correct answer: A person who has contributed consideration (money, goods, or services) for the voyage

A passenger for hire is anyone who has provided any form of consideration either directly or indirectly for transportation on the vessel.

Question 36: What is the proper technique for approaching a dock in a crosswind pushing toward the dock?

Approach at a shallow angle, slow, and let the wind push the vessel alongside (Correct answer)
Approach at full speed perpendicular to the dock
Approach stern-first regardless of conditions
Always approach against the wind

Correct answer: Approach at a shallow angle, slow, and let the wind push the vessel alongside

When the wind is pushing toward the dock, approach at a shallow angle at slow speed, allowing the wind to set the vessel alongside gently.

Question 37: What is a spring tide?

An unusually low tide caused by offshore winds
A tide with the greatest range between high and low water, occurring during full and new moons (Correct answer)
A tide caused by river flow in the spring
A tide that only occurs during the spring season

Correct answer: A tide with the greatest range between high and low water, occurring during full and new moons

Spring tides produce the highest highs and lowest lows due to the combined gravitational pull of the sun and moon when they are aligned.

Question 38: How many total days of documented sea service are required for an initial OUPV license application?

720 days
90 days
360 days (Correct answer)
180 days

Correct answer: 360 days

OUPV applicants must document 360 days of sea service, with at least 90 of those days within the 3 years preceding the application.

Question 39: Which communications must be recorded in a vessel's radio log according to FCC regulations?

All distress, urgency, and safety communications (Correct answer)
Only transmissions made by the vessel
All NOAA weather broadcasts received
Only MAYDAY calls received by the vessel

Correct answer: All distress, urgency, and safety communications

FCC regulations require all distress, urgency, and safety communications to be logged, including the time, channel used, and nature of each communication.

Question 40: What is the purpose of a sea anchor or drogue?

To anchor the vessel to the seabed in deep water
To slow the vessel and maintain heading in heavy weather (Correct answer)
To increase speed in calm water
To measure water depth

Correct answer: To slow the vessel and maintain heading in heavy weather

A sea anchor or drogue is deployed in the water to create drag, slowing the vessels drift and helping maintain a safe heading relative to waves.

Question 41: How should an OUPV operator handle a visibly intoxicated person who attempts to board before departure?

Require a sober companion to accompany the passenger but allow boarding
Seat the passenger in the stern low and proceed with the trip
Refuse boarding, because the operator has the authority and duty to deny unsafe passengers (Correct answer)
Allow boarding only if the passenger signs a liability waiver

Correct answer: Refuse boarding, because the operator has the authority and duty to deny unsafe passengers

The vessel operator has both the authority and the responsibility to deny boarding to any person whose condition poses a safety risk to themselves or others aboard.

Question 42: While underway, you determine your Dead Reckoning (DR) position at 1400 is at LAT 34°10.5'N, LON 076°40.2'W. At the same time, you obtain a GPS fix that places you at LAT 34°11.5'N, LON 076°38.2'W. Which of the following correctly describes the set and drift you have experienced?

Set is approximately 063° True, Drift is 1.5 knots.
Set is approximately 243° True, Drift is 2.2 knots.
Set is approximately 063° True, Drift is 2.2 knots. (Correct answer)
Set is approximately 243° True, Drift is 1.5 knots.

Correct answer: Set is approximately 063° True, Drift is 2.2 knots.

Set is the direction the current is pushing you, and drift is the speed. The 'set' is the direction from the DR position to the actual Fix. The fix is to the Northeast of the DR position, so the direction (set) is roughly 063° True. The 'drift' is the distance between the DR and the fix, divided by the time. The distance is approximately 2.2 nautical miles. Assuming a one-hour run (implied by the question format), the drift is 2.2 knots.

Question 43: Upon receiving a MAYDAY distress call on VHF Channel 16, a vessel master is required to:

Wait for the Coast Guard to respond before taking any action
Acknowledge the call and render assistance if it can be done safely (Correct answer)
Switch to Channel 22A and relay the information to authorities
Continue the voyage and file a report upon arrival at the next port

Correct answer: Acknowledge the call and render assistance if it can be done safely

Maritime law obligates all vessel operators to acknowledge distress calls and render assistance when it can be done without serious danger to their own vessel or crew.

Question 44: Under what conditions can the Coast Guard board and inspect an OUPV vessel?

At any time while the vessel is on navigable waters, without a warrant (Correct answer)
Only during scheduled annual inspections
Only with a warrant
Only if the vessel is involved in an accident

Correct answer: At any time while the vessel is on navigable waters, without a warrant

The USCG has authority to board and inspect any vessel on navigable waters at any time without a warrant.

Question 45: What weather condition does a Small Craft Advisory indicate?

Pleasant sailing weather
Only rain is expected
Water temperature is below 60 degrees F
Sustained winds of 20-33 knots and/or sea conditions dangerous to small vessels (Correct answer)

Correct answer: Sustained winds of 20-33 knots and/or sea conditions dangerous to small vessels

A Small Craft Advisory is issued when sustained winds of 20-33 knots and/or hazardous sea conditions are expected.

Question 46: VHF Channel 6 is designated for which type of marine communications?

Intership safety communications (Correct answer)
Commercial fishing coordination
Recreational vessel calling
Coast Guard coordination only

Correct answer: Intership safety communications

VHF Channel 6 is designated for intership safety communications, used primarily for coordinating vessel movements and safety matters between ships.

Question 47: What is the purpose of a dayboard on a navigation aid?

To serve as a radar reflector
To identify the aid during daylight hours through its shape and color (Correct answer)
To record tidal information
To provide lighting at night

Correct answer: To identify the aid during daylight hours through its shape and color

Dayboards are colored markers mounted on fixed structures that help mariners identify aids to navigation during daylight hours.

Question 48: Under the Navigation Rules, which vessel is the stand-on vessel in a crossing situation?

The vessel traveling faster
The vessel on the left (port) side
Always the larger vessel
The vessel that has the other on its port side (the vessel on the right) (Correct answer)

Correct answer: The vessel that has the other on its port side (the vessel on the right)

In a crossing situation, the vessel that has the other vessel on its port side is the stand-on vessel.

Question 49: When 'radio silence' is imposed on VHF Channel 16, it means:

All traffic except distress communications must immediately cease (Correct answer)
Only Coast Guard stations may transmit
The channel is temporarily under maintenance
All stations must turn their radios off

Correct answer: All traffic except distress communications must immediately cease

Radio silence requires all non-distress traffic on Channel 16 to stop immediately so that ongoing distress communications are not interfered with.

Question 50: Which of the following most accurately describes the effect of 'transverse thrust' (or 'propeller walk') on a single-screw vessel with a right-handed propeller?

In reverse, it tends to push the stern to starboard.
It has no noticeable effect on vessel handling at low speeds.
In reverse, it tends to push the stern to port. (Correct answer)
In forward gear at cruising speed, it strongly pushes the bow to port.

Correct answer: In reverse, it tends to push the stern to port.

A right-handed propeller (which turns clockwise in forward gear when viewed from the stern) creates a sideways force, especially at low speeds. In reverse, this force is most pronounced and consistently 'walks' the stern to port. This predictable effect is often used by skilled operators for close-quarters maneuvering.

Question 51: What does a triangle symbol on a nautical chart represent?

A ferry route
A danger zone
An anchorage area
A fixed navigational aid or landmark used for piloting (Correct answer)

Correct answer: A fixed navigational aid or landmark used for piloting

A triangle on a nautical chart typically represents a fixed navigational aid, landmark, or triangulation point used for position fixing.

Question 52: What is the difference between a leading line and a range on a nautical chart?

A leading line measures distance to shore
A leading line is for submarines only
They are the same thing
A range uses two fixed markers aligned to indicate a safe channel (Correct answer)

Correct answer: A range uses two fixed markers aligned to indicate a safe channel

A range (also called a leading line in international terminology) consists of two fixed markers that, when aligned, indicate a vessel is on the safe centerline of a channel.

Question 53: When fueling a gasoline-powered vessel, which action should be taken FIRST?

Turn off all electrical switches and engines (Correct answer)
Close all hatches and openings
Start the blower system
Open all windows for ventilation

Correct answer: Turn off all electrical switches and engines

Before fueling, all engines, electrical switches, and sources of ignition must be turned off to prevent gasoline vapor ignition.

Question 54: What does five or more short and rapid blasts on a whistle signify?

Danger signal indicating doubt about intentions or insufficient action to avoid collision (Correct answer)
I am backing up
I am altering course to starboard
I am at anchor

Correct answer: Danger signal indicating doubt about intentions or insufficient action to avoid collision

Five or more short rapid blasts is the danger or doubt signal, used when a vessel is unsure of another vessels intentions.

Question 55: What type of cloud formation indicates potential thunderstorm development?

Stratus clouds
Towering cumulonimbus clouds with an anvil top (Correct answer)
Cirrus clouds
Fair-weather cumulus

Correct answer: Towering cumulonimbus clouds with an anvil top

Cumulonimbus clouds with vertical development and an anvil-shaped top indicate a mature thunderstorm.

Question 56: You plot a course of 120° True from your last known position. The variation is 12° West and your compass has a deviation of 4° East. What is the correct compass course (PSC) to steer?

136°
112°
124°
128° (Correct answer)

Correct answer: 128°

To find the Compass course from a True course, you must correct for both variation and deviation. A common mnemonic is "True Virgins Make Dull Company, Add Whiskey" (True, Variation, Magnetic, Deviation, Compass, Add West). When going from True to Compass, you add Westerly variation and subtract Easterly variation. Then, you add Westerly deviation and subtract Easterly deviation. In this case: True (120°) + Variation (12°W) = Magnetic (132°). Magnetic (132°) - Deviation (4°E) = Compass (128°).

Question 57: What should be done immediately if someone falls overboard?

Turn off the engine
Accelerate to get closer to the person
Sound the horn
Throw a buoyant object to the person (Correct answer)

Correct answer: Throw a buoyant object to the person

The immediate action when someone falls overboard is to throw a buoyant object, such as a life ring or PFD, to the person. This provides immediate flotation and a visual marker, helping the person stay afloat and making them easier to locate. Other actions like turning off the engine or accelerating are secondary to providing immediate aid.

Question 58: What is the purpose of a running fix in piloting?

To determine position using two bearings of the same object taken at different times (Correct answer)
To calculate the speed of a current
To fix an engine problem while underway
To determine fuel consumption rate

Correct answer: To determine position using two bearings of the same object taken at different times

A running fix uses two bearings of the same object taken at different times, with the first bearing advanced along the course and distance traveled.

Question 59: What is the USCG requirement for carrying a TWIC for OUPV operators?

TWIC may be required when operating in or near regulated facilities and secure port areas (Correct answer)
TWIC replaces the OUPV license
TWIC is never required for OUPV operators
TWIC is only for airline personnel

Correct answer: TWIC may be required when operating in or near regulated facilities and secure port areas

OUPV operators may need a TWIC when accessing regulated facilities, MARSEC-controlled areas, or certain port facilities.

Question 60: Under MARPOL Annex V, which of the following is an illegal method of garbage disposal for a vessel operating 4 nautical miles from the nearest land?

Discharging paper, rags, and glass. (Correct answer)
Discharging food waste that has been ground to less than 1 inch.
Collecting all garbage in bags for disposal ashore.
Incinerating plastic waste and discharging the ash.

Correct answer: Discharging paper, rags, and glass.

MARPOL Annex V strictly prohibits the discharge of plastics, dunnage, and general refuse like paper, rags, and glass into the sea. Food waste may be discharged if it is ground to pass through a 25mm (approx. 1 inch) screen and the vessel is more than 3 nautical miles from the nearest land and not in a special area.

Question 61: What is the primary tool used for marine navigation to determine a vessel's position?

Sextant
GPS (Correct answer)
Radar
Compass

Correct answer: GPS

The Global Positioning System (GPS) is the primary tool used for marine navigation to determine a vessel's precise position. GPS receivers use signals from satellites to calculate highly accurate latitude and longitude coordinates. This real-time positioning information is crucial for safe passage, route planning, and avoiding navigational hazards at sea.

Question 62: What is the difference between course over ground (COG) and heading?

COG measures depth; heading measures speed
Heading includes the effect of current; COG does not
They are always the same
COG is the actual track over the seabed; heading is the direction the bow points (Correct answer)

Correct answer: COG is the actual track over the seabed; heading is the direction the bow points

Course over ground is the actual path the vessel traces over the seabed (as shown by GPS), while heading is the direction the bow is pointed.

Question 63: An FCC Ship Station License is required for a U.S.-flagged vessel when:

Operating on freshwater lakes or rivers
Traveling to international waters or a foreign port of call (Correct answer)
Carrying more than six passengers for hire
Operating only within U.S. harbors and marinas

Correct answer: Traveling to international waters or a foreign port of call

A Ship Station License is not required for domestic U.S. voyages, but becomes mandatory for U.S. vessels traveling internationally or calling at foreign ports.

Question 64: Which factor most increases the risk of capsizing a small vessel?

Operating at slow speed in calm water
Having too many PFDs aboard
Using a depth sounder
Overloading and improper weight distribution (Correct answer)

Correct answer: Overloading and improper weight distribution

Overloading a vessel and placing weight too high or unevenly is the leading cause of capsizing in small boats.

Question 65: You are operating a vessel in the Northern Hemisphere and observe the barometer falling steadily, the wind shifting from southwest to northwest, and a line of dark, vertically developed clouds approaching. What weather phenomenon are you most likely experiencing?

The formation of advection fog
The formation of a land breeze
The passage of a warm front
The passage of a cold front (Correct answer)

Correct answer: The passage of a cold front

The classic signs of a cold front passage include a drop in barometric pressure followed by a sharp rise, a significant wind shift (often from a southerly/southwesterly direction to a westerly/northwesterly one), and the presence of squall lines with cumulonimbus clouds that can bring thunderstorms and heavy rain.

Question 66: When navigating in a narrow channel, what is the general rule of thumb for your vessel's position within the channel?

Overtake other vessels on whichever side is wider.
Navigate on the port side of the channel.
Keep as near to the outer limit of the channel which lies on your starboard side as is safe and practicable. (Correct answer)
Keep to the center of the channel for deepest water.

Correct answer: Keep as near to the outer limit of the channel which lies on your starboard side as is safe and practicable.

Rule 9, which governs conduct in narrow channels, explicitly states that a vessel proceeding along the course of a narrow channel shall keep as near to the outer limit of the channel which lies on her starboard side as is safe and practicable.

Question 67: Which knot is most appropriate for securing a line to a cleat?

Sheet bend
Rolling hitch
Cleat hitch (Correct answer)
Bowline

Correct answer: Cleat hitch

A cleat hitch is specifically designed for securing lines to cleats, using figure-eight wraps topped with a locking turn.

Question 68: What is the minimum fire extinguisher requirement for a motorized passenger vessel under 26 feet in length?

At least one B-I USCG-approved portable fire extinguisher (Correct answer)
One A-I rated extinguisher near the fuel tank
No extinguisher is required on vessels under 26 feet
Two B-II extinguishers mounted at the helm

Correct answer: At least one B-I USCG-approved portable fire extinguisher

Motorized vessels under 26 feet carrying passengers require at least one B-I class USCG-approved portable fire extinguisher.

Question 69: What does the term set and drift describe in navigation?

The vessels heading and course
The direction and speed of the current affecting vessel movement (Correct answer)
The speed of the vessel through the water
The wind speed and direction

Correct answer: The direction and speed of the current affecting vessel movement

Set is the direction toward which a current flows, and drift is the speed of that current. Together they describe currents effect on navigation.

Question 70: What type of fire extinguishing agent is most effective for an electrical fire on a vessel?

Foam (AFFF)
Water
CO2 (carbon dioxide) (Correct answer)
Dry chemical type A only

Correct answer: CO2 (carbon dioxide)

CO2 extinguishers are ideal for electrical fires because they do not leave residue, are non-conductive, and smother the fire by displacing oxygen.

Question 71: At night, you see another vessel ahead exhibiting both red and green sidelights and a white masthead light. What type of situation is this, and what action is required?

A stationary vessel at anchor.
An overtaking situation where you are the stand-on vessel.
A head-on situation where both vessels must alter course to starboard. (Correct answer)
A crossing situation where you must give way.

Correct answer: A head-on situation where both vessels must alter course to starboard.

Seeing both sidelights of a vessel ahead indicates a head-on or nearly head-on situation. According to Rule 14, in such a meeting, each vessel must alter her course to starboard so that each shall pass on the port side of the other.

Question 72: During a man overboard (MOB) drill, what is the FIRST action the operator should take immediately after a person goes overboard?

Maneuver the vessel to pick up the person.
Deploy a life raft.
Notify the Coast Guard via VHF Channel 16.
Throw a buoyant device, such as a life ring or PFD, to the person in the water. (Correct answer)

Correct answer: Throw a buoyant device, such as a life ring or PFD, to the person in the water.

The immediate priority in a man overboard situation is to provide flotation to the person in the water and mark their position. Throwing a life ring or other PFD achieves this and gives the crew a visual reference while the vessel is maneuvered for recovery.

Question 73: What does making way mean in vessel operations?

The vessel is at anchor
The vessel is moving through the water under its own power (Correct answer)
The vessel is drifting with no engine running
The vessel is tied to a dock

Correct answer: The vessel is moving through the water under its own power

Making way means the vessel is actually moving through the water, as opposed to underway which simply means not at anchor, moored, or aground.

Question 74: What does the acronym IALA stand for in maritime navigation?

International Association of Lighthouse Authorities (Correct answer)
International Automatic Light Array
Integrated Aids to Lighthouse Administration
Inland Area Lateral Aid

Correct answer: International Association of Lighthouse Authorities

IALA stands for the International Association of Lighthouse Authorities, which standardizes aids to navigation worldwide.

Question 75: What is the Williamson Turn maneuver used for?

Navigating through a narrow channel
Docking in tight spaces
Avoiding a collision at the last moment
Recovering a man overboard by returning the vessel to its reciprocal course (Correct answer)

Correct answer: Recovering a man overboard by returning the vessel to its reciprocal course

The Williamson Turn is a man overboard recovery maneuver that returns the vessel to its original track line on a reciprocal heading.

Question 76: What should an OUPV operator do when the GPS signal is lost?

Revert to traditional navigation methods: compass bearings, dead reckoning, and visual piloting (Correct answer)
Stop the vessel and wait for signal restoration
Call the Coast Guard for a position report
Continue on the same heading indefinitely

Correct answer: Revert to traditional navigation methods: compass bearings, dead reckoning, and visual piloting

When GPS is lost, a competent navigator reverts to traditional methods including compass navigation, dead reckoning, and visual piloting.

Question 77: What is the maximum number of passengers an OUPV (six-pack) license allows you to carry?

No limit for vessels under 100 gross tons
6 passengers (Correct answer)
20 passengers
12 passengers

Correct answer: 6 passengers

An OUPV license allows carrying a maximum of 6 passengers for hire.

Question 78: What is the danger of following seas (waves from astern)?

They cool the engine
Risk of broaching, pooping (waves breaking over the stern), or surfing out of control (Correct answer)
There is no danger from following seas
They always increase vessel speed safely

Correct answer: Risk of broaching, pooping (waves breaking over the stern), or surfing out of control

Following seas can cause broaching, pooping, or surfing down wave faces with loss of steering control.

Question 79: What is the primary purpose of wearing a personal flotation device (PFD)?

To assist with swimming
To prevent drowning (Correct answer)
To increase speed
To keep warm

Correct answer: To prevent drowning

The primary purpose of wearing a personal flotation device (PFD) is to keep a person's head above water, even if they are unconscious or unable to swim. This significantly reduces the risk of drowning by providing buoyancy and allowing time for rescue. PFDs are a critical safety item on any vessel, especially for those who may fall overboard.

Question 80: Two sailing vessels are approaching on opposite tacks. Vessel A is on a port tack, and Vessel B is on a starboard tack. According to the Navigation Rules, which vessel is the stand-on vessel?

The vessel that is overtaking the other.
Vessel A, because it is on a port tack.
Vessel B, because it is on a starboard tack. (Correct answer)
The vessel that is to leeward.

Correct answer: Vessel B, because it is on a starboard tack.

Rule 12 states that when two sailing vessels are approaching one another on opposite tacks, the vessel which has the wind on the port side (port tack) shall keep out of the way of the other (starboard tack). Therefore, the vessel on the starboard tack is the stand-on vessel.

Question 81: What is the pivot point of a vessel and why is it important for maneuvering?

The center of the vessel at all times
The point around which the vessel rotates, typically forward of amidships when moving ahead (Correct answer)
The location of the rudder
The bowsprit

Correct answer: The point around which the vessel rotates, typically forward of amidships when moving ahead

The pivot point is typically located about one-third from the bow when moving ahead. Understanding it is critical for close-quarters maneuvering.

Question 82: What is the purpose of the Navigation Rules (COLREGS) in the context of operating a UPV?

To provide a guide for fishing regulations
To establish the "rules of the road" for preventing collisions at sea (Correct answer)
To outline rules for commercial vessel construction
To set passenger capacity limits

Correct answer: To establish the "rules of the road" for preventing collisions at sea

The International Regulations for Preventing Collisions at Sea (COLREGS), also known as the Navigation Rules, are a set of standardized rules that govern the conduct of vessels on the water. Their primary purpose is to prevent collisions by dictating right-of-way, lighting, sound signals, and other operational procedures. All mariners, including OUPV operators, must adhere to these rules.

Question 83: Under the Navigation Rules, a sailing vessel underway must keep out of the way of all the following vessels EXCEPT:

A vessel not under command
A vessel restricted in its ability to maneuver
A vessel engaged in fishing
A power-driven vessel crossing its path (Correct answer)

Correct answer: A power-driven vessel crossing its path

According to Rule 18, a sailing vessel must keep out of the way of a vessel not under command, a vessel restricted in its ability to maneuver, and a vessel engaged in fishing. However, a power-driven vessel must generally keep out of the way of a sailing vessel.

Question 84: When must a commercial passenger vessel maintain a listening watch on VHF Channel 16?

Only during reduced visibility
Only when operating in coastal waters
Only at night when underway
Continuously while underway (Correct answer)

Correct answer: Continuously while underway

All commercial vessels are required by regulation to maintain a continuous watch on VHF Channel 16 whenever the vessel is underway.

Question 85: What is dead reckoning (DR) in piloting?

Estimating position based on course steered, speed, and time from a known position (Correct answer)
Taking bearings from two or more objects
Navigating using only GPS
Following the depth contours on a chart

Correct answer: Estimating position based on course steered, speed, and time from a known position

Dead reckoning is the process of estimating a vessels current position by projecting from a known position using the course steered, speed, and elapsed time.

Question 86: As the operator of an OUPV, you must ensure emergency drills are conducted. What is the MINIMUM frequency required for conducting both abandon ship and fire drills?

At least once every three months
Weekly
At least once each month (Correct answer)
Before the start of each voyage with new passengers

Correct answer: At least once each month

According to 46 CFR 185.520 and 199.180, every crewmember must participate in at least one abandon-ship drill and one fire drill every month. This ensures familiarity and readiness for an actual emergency.

Question 87: What safety equipment must be demonstrated to passengers before departure on an uninspected passenger vessel?

The vessels insurance documents
How to operate the radio
Location and use of PFDs, fire extinguishers, and emergency exits (Correct answer)
Only the location of fire extinguishers

Correct answer: Location and use of PFDs, fire extinguishers, and emergency exits

Before departure, passengers must be briefed on PFD locations, fire extinguisher locations, and emergency exit routes as required for uninspected passenger vessels.

Question 88: You are operating a single-screw vessel in a narrow channel, proceeding parallel and close to the starboard bank. Which hydrodynamic forces should you expect to affect your vessel?

The bow will be pushed away from the bank, and the stern will be pulled toward it. (Correct answer)
The vessel's speed will increase significantly without a change in engine RPM.
The stern will be pushed away from the bank, and the bow will be pulled toward it.
The entire vessel will be pulled directly sideways into the bank.

Correct answer: The bow will be pushed away from the bank, and the stern will be pulled toward it.

This scenario describes the combined phenomena of bank cushion and bank suction. Water displaced by the bow becomes compressed against the nearby bank, creating a high-pressure cushion that pushes the bow away. Simultaneously, the accelerated flow of water into the propeller in the restricted space between the stern and the bank creates a low-pressure area, sucking the stern inward.

Question 89: What determines safe speed under Rule 6?

Whatever speed the vessel can achieve
The posted speed limit only
Multiple factors including visibility, traffic density, maneuverability, background light, sea state, and draft relative to available depth (Correct answer)
The speed of surrounding traffic

Correct answer: Multiple factors including visibility, traffic density, maneuverability, background light, sea state, and draft relative to available depth

Rule 6 lists multiple factors that determine safe speed, including visibility, traffic, vessel maneuverability, background light, sea state, wind, current, and navigational hazards.

Question 90: What is the first action a captain should take when a man overboard (MOB) is reported?

Turn the vessel in a complete circle
Stop the engines immediately
Throw a flotation device toward the person and assign a spotter (Correct answer)
Call the Coast Guard immediately

Correct answer: Throw a flotation device toward the person and assign a spotter

The immediate response to MOB is to throw a flotation device to mark the location and assign someone to maintain continuous visual contact with the person in the water.

Question 91: Within how many days must a charter vessel operator file a written casualty report (CG-2692) with the USCG after a reportable marine incident?

30 days
5 days (Correct answer)
60 days
14 days

Correct answer: 5 days

USCG regulations require a written CG-2692 casualty report to be submitted within 5 days for reportable marine casualties such as deaths, injuries, or significant property damage.

Question 92: What is the requirement for life jackets on an Uninspected Passenger Vessel?

One life jacket per passenger (Correct answer)
Life jackets only for children
Life jackets are not required
One life jacket for every two passengers

Correct answer: One life jacket per passenger

U.S. Coast Guard regulations require that all recreational vessels, including Uninspected Passenger Vessels, have at least one U.S. Coast Guard-approved life jacket (PFD) for each person on board. These must be readily accessible and of the appropriate size for the intended wearer. This ensures that everyone has immediate access to flotation in an emergency.

Question 93: What chart datum is used for depth soundings on most U.S. nautical charts?

Mean sea level
Mean lower low water (MLLW) (Correct answer)
Mean high water
Spring tide level

Correct answer: Mean lower low water (MLLW)

Depths on U.S. nautical charts are referenced to mean lower low water (MLLW), which represents the average of the lower of the two daily low tides.

Question 94: What is the purpose of a vessel safety check?

To estimate the vessel's value
To certify the captain's credentials
To ensure the vessel meets all safety regulations (Correct answer)
To check for illegal items on board

Correct answer: To ensure the vessel meets all safety regulations

A vessel safety check is a voluntary inspection conducted by the U.S. Coast Guard Auxiliary or U.S. Power Squadrons to ensure a boat meets all federal and state safety requirements. This check covers essential safety equipment, proper registration, and operational readiness. Its purpose is to enhance safety on the water and help boaters avoid potential violations.

Question 95: What is the sound signal for a vessel overtaking another in a narrow channel under Inland Rules?

Two prolonged blasts followed by one short blast (to starboard) or two short blasts (to port) (Correct answer)
Five short blasts
One short blast
One prolonged blast

Correct answer: Two prolonged blasts followed by one short blast (to starboard) or two short blasts (to port)

Under Inland Rules, the overtaking vessel signals: two prolonged plus one short blast to pass on starboard side, or two prolonged plus two short blasts to pass on port side.

Question 96: What is the purpose of scuppers on a vessel?

To secure dock lines
To allow water on deck to drain overboard (Correct answer)
To store fishing equipment
To provide ventilation to the engine room

Correct answer: To allow water on deck to drain overboard

Scuppers are openings in the vessels bulwarks or toe rail that allow water shipped on deck to drain overboard.

Question 97: What action should be taken if the vessels steering fails while underway?

Continue using the throttle to steer
Increase speed to maintain control
Immediately reduce speed, alert passengers, deploy the anchor if in danger, and attempt emergency steering (Correct answer)
Jump overboard and swim to shore

Correct answer: Immediately reduce speed, alert passengers, deploy the anchor if in danger, and attempt emergency steering

Steering failure requires immediately reducing speed, alerting passengers, assessing the situation, and using emergency steering methods or anchoring.

Question 98: You are the operator of a 35-foot uninspected passenger vessel. A fire breaks out in the engine compartment, which has a fixed fire extinguishing system. How many B-I portable fire extinguishers are you required to have readily available?

None, the fixed system is sufficient
One (Correct answer)
Two
Three

Correct answer: One

For vessels between 26 and 40 feet, the requirement is for two B-I type portable extinguishers. However, if an approved fixed fire extinguishing system is installed in the machinery space, this may count in place of one B-I type portable extinguisher, reducing the required number of portable extinguishers to one.

Question 99: What does Rule 2 (Responsibility) require of all vessel operators?

Using good seamanship, including departing from the rules when necessary to avoid immediate danger (Correct answer)
Following the rules exactly without deviation
Only following Coast Guard orders
Maintaining maximum speed at all times

Correct answer: Using good seamanship, including departing from the rules when necessary to avoid immediate danger

Rule 2 establishes that while vessels must follow the Navigation Rules, nothing excuses failure to use good seamanship, including departing from the rules when necessary.

Question 100: What is the significance of a safe water mark in the IALA buoyage system?

It indicates a speed restriction zone
It indicates navigable water all around, typically marking a channel entrance or centerline (Correct answer)
It marks a dangerous wreck
It marks an anchoring prohibition

Correct answer: It indicates navigable water all around, typically marking a channel entrance or centerline

Safe water marks indicate that there is navigable water all around the mark. They are used at channel entrances, centerlines, and mid-channel positions.

Question 101: What does a red nun buoy with even numbers indicate in the U.S. buoyage system?

The center of a navigable channel
A preferred channel to the left
An anchorage area
The right side of a channel when returning from sea (Correct answer)

Correct answer: The right side of a channel when returning from sea

Red nun buoys mark the right (starboard) side of a channel when returning from sea, following the red right returning convention.

Question 102: What document must an OUPV operator keep aboard the vessel while carrying passengers for hire?

A photocopy of the credential only
Only the operator's driver's license
The vessel's state registration alone
Original or certified copy of the OUPV credential (Correct answer)

Correct answer: Original or certified copy of the OUPV credential

USCG regulations require the operator's original Merchant Mariner Credential or a certified copy to be kept aboard and available for inspection while underway with passengers for hire.

Question 103: You are operating a power-driven vessel in restricted visibility and hear one prolonged blast followed by two short blasts. Which of the following vessels could be sounding this signal?

A vessel aground.
A sailing vessel underway. (Correct answer)
A vessel being towed.
A power-driven vessel underway but stopped and not making way through the water.

Correct answer: A sailing vessel underway.

According to Rule 35, a sailing vessel underway in restricted visibility shall sound one prolonged blast followed by two short blasts at intervals of not more than 2 minutes. This signal also applies to vessels not under command, vessels restricted in their ability to maneuver, vessels engaged in fishing, and vessels engaged in towing or pushing another vessel.

Question 104: What should be included in a vessels emergency plan for passengers?

The vessels insurance policy number
Muster stations, PFD locations, abandon ship procedures, and distress signal protocols (Correct answer)
A list of nearby restaurants in case the trip is cancelled
Only the location of the nearest hospital

Correct answer: Muster stations, PFD locations, abandon ship procedures, and distress signal protocols

A comprehensive emergency plan includes muster stations, PFD locations, abandon ship procedures, and how distress signals will be sent.

Question 105: What is the primary purpose of a vessel's MMSI number programmed into a DSC radio?

To access NOAA weather broadcasts automatically
To uniquely identify the vessel when sending or receiving DSC calls (Correct answer)
To register the vessel's operating frequencies with the FCC
To identify licensed VHF channels the vessel may use

Correct answer: To uniquely identify the vessel when sending or receiving DSC calls

The Maritime Mobile Service Identity (MMSI) is a unique 9-digit number that identifies a vessel's DSC-equipped radio, allowing targeted distress alerts linked to vessel registration data.

Question 106: What is the minimum age requirement to obtain an OUPV license from the USCG?

25 years old
16 years old
18 years old (Correct answer)
21 years old

Correct answer: 18 years old

The USCG requires OUPV applicants to be at least 18 years of age at the time of application.

Question 107: What is the term for the angular difference between magnetic north and true north?

Deviation
Bearing
Heading
Variation (Correct answer)

Correct answer: Variation

Variation is the angular difference between true north (the geographic North Pole) and magnetic north (where a compass needle points). This difference is caused by the Earth's magnetic field not being perfectly aligned with its rotational axis and constantly shifting. Mariners must account for variation, which is indicated on nautical charts, to accurately navigate using a magnetic compass.

Question 108: When towing another vessel, what is the primary purpose of maintaining a sag, or 'catenary,' in the towline?

To act as a shock absorber against sudden loads. (Correct answer)
To shorten the effective length of the tow for better control.
To keep the line from fouling in the propeller.
To reduce the overall drag of the towline in the water.

Correct answer: To act as a shock absorber against sudden loads.

The weight of the towline creates a natural sag known as a catenary. This curve acts as a spring or shock absorber, dampening the shock loads that occur as the two vessels pitch and surge in a seaway. This prevents sudden, powerful jerks that could part the line or damage deck fittings on either vessel.

Question 109: How do you determine the height of a bridge on a nautical chart?

Listed as the total structural height
Measured from the seabed to the top of the bridge
Measured from the waterline at high tide
Clearance is measured from mean high water (MHW) to the lowest point of the bridge (Correct answer)

Correct answer: Clearance is measured from mean high water (MHW) to the lowest point of the bridge

Bridge clearances on nautical charts are measured from mean high water (MHW) to the lowest structural member of the bridge.

Question 110: You are operating a power-driven vessel in a narrow channel and intend to overtake another power-driven vessel on its starboard side. According to the Inland Navigation Rules, what is the appropriate whistle signal to indicate your intention?

One short blast (Correct answer)
Two short blasts
One prolonged blast
Five or more short blasts

Correct answer: One short blast

Inland Navigation Rule 9 states that a vessel intending to overtake another on the other vessel's starboard side shall sound one short blast. If the vessel to be overtaken agrees, it will sound the same signal in return.

Question 111: What do nautical charts primarily provide for navigators?

Fishing locations
Weather information
Water depth and hazards (Correct answer)
Fuel prices

Correct answer: Water depth and hazards

Nautical charts are specialized maps designed for marine navigation, primarily providing critical information about water depth and hazards. They display depths, submerged obstacles, shorelines, navigational aids, and other features essential for safe passage. This data allows navigators to plan routes, avoid shallow areas, and identify potential dangers.

Question 112: What material should NOT be used to clean up a fuel spill on deck?

Sawdust or absorbent material
Oil-absorbent pads
Rags contained in a proper disposal bag
Water from a fire hose to wash it overboard (Correct answer)

Correct answer: Water from a fire hose to wash it overboard

Washing fuel overboard with water is an environmental violation. Fuel spills must be contained and absorbed using proper absorbent materials.

Question 113: When anchoring in moderate weather, what is the generally recommended minimum scope, which is the ratio of anchor rode length to the sum of water depth and the vessel's freeboard?

2:1 to 3:1
5:1 to 7:1 (Correct answer)
10:1
3:1 to 4:1

Correct answer: 5:1 to 7:1

A scope of 5:1 to 7:1 is the standard recommendation for ensuring the anchor has the proper angle of pull to dig in and hold effectively in typical conditions. A shorter scope might be used for a brief stop in calm weather but is insufficient for reliable holding. A longer scope (10:1 or more) is reserved for heavy weather or poor holding ground.

Question 114: What drug and alcohol testing requirements apply to OUPV license holders?

Only tested once when the license is first issued
No testing is required for six-pack operators
Testing is optional and self-administered
Pre-employment, random, post-casualty, and reasonable cause testing as required by 46 CFR Part 16 (Correct answer)

Correct answer: Pre-employment, random, post-casualty, and reasonable cause testing as required by 46 CFR Part 16

OUPV license holders are subject to USCG drug and alcohol testing including pre-employment, random, post-casualty, and reasonable cause testing.

Question 115: What records must an OUPV operator maintain aboard the vessel?

No records are required for uninspected vessels
A daily weather diary only
Only financial records for tax purposes
Voyage records including passenger count, crew names, safety equipment checks, and fuel levels (Correct answer)

Correct answer: Voyage records including passenger count, crew names, safety equipment checks, and fuel levels

OUPV operators should maintain records including passenger counts, crew information, safety equipment status, voyage plans, and fuel levels.

Question 116: What is the proper lookout requirement under the Navigation Rules?

Every vessel shall at all times maintain a proper lookout by sight and hearing and all available means (Correct answer)
A lookout is required only in restricted visibility
A lookout is only required at night
Only vessels over 65 feet need a lookout

Correct answer: Every vessel shall at all times maintain a proper lookout by sight and hearing and all available means

Rule 5 requires every vessel to maintain a proper lookout at all times using sight, hearing, and all available means.

Question 117: What first aid certifications are typically required as part of the OUPV licensing process?

Paramedic certification
Advanced trauma life support
Basic first aid and CPR (Correct answer)
No first aid certification is required

Correct answer: Basic first aid and CPR

OUPV applicants must demonstrate proficiency in basic first aid and CPR as minimum safety competencies for operating a vessel with passengers.

Question 118: What is the safest method for a passenger to board a small vessel?

Jump from the dock to the center of the vessel
Step low and into the center while maintaining three points of contact (Correct answer)
Step onto the gunwale and then into the vessel
Board from the stern while the engine is running

Correct answer: Step low and into the center while maintaining three points of contact

Boarding by stepping low into the center of the vessel while maintaining three points of contact keeps the center of gravity low and prevents capsizing.

Question 119: What are the sea service requirements for an original OUPV license?

360 days of documented sea service, with 90 days in the last 3 years (Correct answer)
No sea time required
1,000 days at sea
Only a written exam is required

Correct answer: 360 days of documented sea service, with 90 days in the last 3 years

An original OUPV license requires 360 days of sea service, with at least 90 of those days occurring within the past 3 years.

Question 120: What is the consequence for an OUPV holder who operates with an expired credential while carrying passengers for hire?

It is a federal violation that can result in civil penalties and loss of operating authority (Correct answer)
The state can issue a temporary extension while renewal is pending
Only a written warning is issued for the first offense
The credential automatically renews for 30 days after expiration

Correct answer: It is a federal violation that can result in civil penalties and loss of operating authority

Operating as a passenger-for-hire vessel operator with an expired USCG credential is a federal maritime law violation subject to civil penalties and potential suspension of mariner privileges.

Question 121: What is the immediate correct response when a passenger falls overboard from a charter vessel?

Radio the USCG and await instructions before taking action
Anchor the vessel before attempting any rescue
Execute a man-overboard maneuver and immediately throw a life ring to the victim (Correct answer)
Continue to the nearest port and report upon arrival

Correct answer: Execute a man-overboard maneuver and immediately throw a life ring to the victim

Immediate action during a man-overboard emergency includes executing the appropriate recovery turn and deploying a throwable PFD to mark the victim's position.

Question 122: You are operating a 35-foot power-driven vessel underway at night. Which of the following lighting configurations is required?

Sidelights and a sternlight only.
One all-round white light only.
A masthead light forward, sidelights, and a sternlight. (Correct answer)
A red all-round light over a white all-round light.

Correct answer: A masthead light forward, sidelights, and a sternlight.

A power-driven vessel underway is required to exhibit a masthead light forward, sidelights (red for port, green for starboard), and a sternlight. Vessels under 12 meters (approximately 39.4 feet) may, as an alternative, exhibit an all-round white light and sidelights.

Question 123: What is the legal blood alcohol content (BAC) limit for operating a commercial vessel?

0.08% (same as driving)
There is no legal limit
0.04% (Correct answer)
0.10%

Correct answer: 0.04%

The BAC limit for operating a commercial vessel is 0.04%, which is half the standard driving limit.

Question 124: What does GPS WAAS provide compared to standard GPS?

Sonar depth readings
Faster vessel speed
Radar capability
Improved accuracy to approximately 3 meters or better (Correct answer)

Correct answer: Improved accuracy to approximately 3 meters or better

WAAS (Wide Area Augmentation System) improves GPS accuracy from approximately 15 meters to about 3 meters by providing correction signals.

Question 125: What is the primary purpose of leaving a float plan with a responsible person ashore before departing with passengers?

To satisfy a mandatory USCG filing requirement before every trip
To document passenger weight for stability calculations
To provide search and rescue authorities with vessel, route, and return time information (Correct answer)
To calculate fuel consumption for the voyage

Correct answer: To provide search and rescue authorities with vessel, route, and return time information

A float plan left ashore gives emergency responders the vessel description, passenger list, route, and expected return time needed to initiate a timely search if the vessel is overdue.

Question 126: On an uninspected passenger vessel operating in coastal waters, what is the minimum requirement for visual distress signals (VDS)?

One parachute flare and two orange smoke signals.
One orange distress flag or one electric distress light.
Six handheld red flares.
Three day signals and three night signals. (Correct answer)

Correct answer: Three day signals and three night signals.

All uninspected passenger vessels operating on coastal waters, the Great Lakes, or oceans must carry a minimum of three day-use and three night-use approved visual distress signals. Combinations of devices can be used to meet this requirement, such as three combination day/night flares.

Question 127: What is the minimum freeboard concern for a loaded vessel?

There is no minimum freeboard requirement
The vessel must have at least 6 inches of freeboard at all times
Sufficient freeboard to prevent waves from entering the vessel and maintain stability (Correct answer)
Freeboard only matters for vessels over 65 feet

Correct answer: Sufficient freeboard to prevent waves from entering the vessel and maintain stability

A vessel must maintain sufficient freeboard to prevent water from entering and to ensure adequate stability.

Question 128: Which of the following vessels has the highest priority (is the most 'stand-on' vessel) according to the general hierarchy of responsibility between vessels (Rule 18)?

A power-driven vessel
A vessel restricted in her ability to maneuver (Correct answer)
A vessel engaged in fishing
A sailing vessel underway

Correct answer: A vessel restricted in her ability to maneuver

Rule 18 establishes a 'pecking order' for vessel responsibility. A vessel restricted in her ability to maneuver is to be kept clear of by power-driven vessels, sailing vessels, and vessels engaged in fishing. Only a vessel not under command has higher priority.

Question 129: How does trim affect a vessels handling characteristics?

Only matters for vessels over 100 feet
Trim has no effect on handling
Only affects fuel consumption
Bow-heavy trim improves directional stability but reduces maneuverability; stern-heavy trim increases maneuverability but reduces stability (Correct answer)

Correct answer: Bow-heavy trim improves directional stability but reduces maneuverability; stern-heavy trim increases maneuverability but reduces stability

Trim significantly affects handling: bow-down trim tracks straighter but turns slowly; stern-down trim turns more easily but may be less directionally stable.

Question 130: While operating in large following seas, your vessel is suddenly thrown sideways by a wave, becoming parallel to the wave crests and placing it in extreme danger of capsizing. This dangerous situation is known as:

Heaving-to
Broaching (Correct answer)
Surfing
Pitchpoling

Correct answer: Broaching

Broaching occurs when a vessel's speed matches the wave speed, causing a loss of steerage as it surfs down a wave face. The stern is then pushed by the wave, causing the vessel to yaw uncontrollably and end up beam-on to the seas, where it is vulnerable to being rolled over by the next wave.

Question 131: You are navigating off the coast of New England and encounter a dense fog bank. The weather report indicated that warm, moist air from the south was moving over the colder ocean water. What type of fog is this?

Steam fog
Upslope fog
Advection fog (Correct answer)
Radiation fog

Correct answer: Advection fog

Advection fog forms when warm, moist, and stable air moves horizontally (advects) over a cooler surface, such as cold ocean water. The air is cooled to its dew point, causing widespread and often persistent fog. This is common in coastal areas where warm air masses meet colder ocean currents.

Question 132: What does DSC stand for in marine radio communications?

Direct Ship Communication
Digital Safety Channel
Digital Selective Calling (Correct answer)
Distress Signal Code

Correct answer: Digital Selective Calling

Digital Selective Calling (DSC) allows a vessel to send an automated distress alert containing GPS position data to the Coast Guard and nearby vessels.

Question 133: On a nautical chart, what does a magenta (purple) color typically indicate?

Shallow water areas
Restricted military zones only
Lighted aids to navigation and caution areas (Correct answer)
Deep water channels

Correct answer: Lighted aids to navigation and caution areas

Magenta is used on nautical charts to highlight lighted aids to navigation, caution areas, and other important navigational features.

Question 134: How many USCG-approved life jackets must be carried aboard a vessel with an operator and 6 passengers for hire?

7 — one for every person aboard including the operator (Correct answer)
6 — one per paying passenger only
4 — only for non-swimmers
8 — two extra as spares

Correct answer: 7 — one for every person aboard including the operator

USCG regulations require at least one approved wearable personal flotation device for every person aboard, including the vessel operator.

Question 135: After establishing contact on Channel 16, which channel should mariners use to speak with the U.S. Coast Guard for non-emergency assistance?

Channel 16
Channel 9
Channel 22A (Correct answer)
Channel 68

Correct answer: Channel 22A

Channel 22A is the primary U.S. Coast Guard working channel; vessels are directed there from Channel 16 for non-distress communications.

Question 136: A SECURITE (say-cure-e-TAY) radio call is used to broadcast:

An urgent medical emergency
Important navigational and meteorological warnings (Correct answer)
Routine vessel position reports
A vessel in distress

Correct answer: Important navigational and meteorological warnings

SECURITE is the safety signal used to broadcast important navigational hazards and meteorological warnings to all mariners in the area.

Question 137: What are the carriage requirements for visual distress signals on an OUPV vessel?

No visual distress signals are required
One flare of any type
Visual distress signals are only required for ocean voyages
A minimum of 3 day and 3 night signals, or 3 combined day/night signals, approved by the USCG (Correct answer)

Correct answer: A minimum of 3 day and 3 night signals, or 3 combined day/night signals, approved by the USCG

Vessels must carry a minimum of 3 USCG-approved visual distress signals for daytime use and 3 for nighttime use, or 3 combination signals.

Question 138: What does the term draft refer to on a vessel?

The angle of the rudder
The height of the mast above the waterline
The speed at which the vessel can travel
The vertical distance from the waterline to the lowest point of the hull (Correct answer)

Correct answer: The vertical distance from the waterline to the lowest point of the hull

Draft is the vertical distance between the waterline and the deepest point of the vessels hull, determining the minimum water depth needed for safe navigation.

Question 139: When must an OUPV operator file a marine casualty report with the Coast Guard?

Marine casualty reports are voluntary
Only for commercial fishing vessels
Only when the vessel sinks completely
When there is death, serious injury, property damage over 75000 dollars, or loss of a vessel (Correct answer)

Correct answer: When there is death, serious injury, property damage over 75000 dollars, or loss of a vessel

USCG regulations require filing a marine casualty report for any incident involving death, serious injury, significant property damage, or vessel loss.

Question 140: For how many years is a USCG-issued OUPV credential valid before renewal is required?

5 years (Correct answer)
2 years
3 years
10 years

Correct answer: 5 years

All Merchant Mariner Credentials, including the OUPV, are valid for 5 years and must be renewed before the expiration date.

Question 141: Which route endorsement on an OUPV credential authorizes operation within 200 miles offshore?

Inland
Near-Coastal (Correct answer)
Great Lakes Only
Offshore Unlimited

Correct answer: Near-Coastal

The Near-Coastal endorsement authorizes an OUPV operator to navigate in waters not more than 200 miles from a baseline along the US coastline.

Question 142: You are operating a 15-meter powerboat in foggy conditions, making way through the water. What sound signal are you required to make?

One prolonged blast at intervals of not more than two minutes. (Correct answer)
One prolonged blast followed by two short blasts every two minutes.
Ringing a bell rapidly for 5 seconds every minute.
Two prolonged blasts every two minutes.

Correct answer: One prolonged blast at intervals of not more than two minutes.

Rule 35(a) specifies that a power-driven vessel making way through the water in or near an area of restricted visibility shall sound one prolonged blast at intervals of not more than 2 minutes.

Question 143: What wave characteristics should an OUPV operator consider when deciding whether to proceed?

Waves are irrelevant for experienced captains
Only wave height matters
Wave height, period, direction, and whether seas are building or subsiding (Correct answer)
Only the wind speed

Correct answer: Wave height, period, direction, and whether seas are building or subsiding

Safe voyage planning requires evaluating wave height, period, direction relative to course, and the trend.

Question 144: What does the word 'OVER' mean when used in a radio transmission?

The communication is ended
I have received and understood your message
I am standing by on this channel
My transmission is complete and I await your reply (Correct answer)

Correct answer: My transmission is complete and I await your reply

'Over' signals that your transmission is complete and you are inviting the other party to respond.

Question 145: What fog signal must a power-driven vessel making way sound in restricted visibility?

One prolonged blast at intervals of not more than two minutes (Correct answer)
Three short blasts every three minutes
Two short blasts every minute
Continuous ringing of a bell

Correct answer: One prolonged blast at intervals of not more than two minutes

A power-driven vessel making way through the water must sound one prolonged blast at intervals of not more than two minutes in restricted visibility.

Question 146: During daylight hours, you see a vessel ahead displaying three black balls in a vertical line. What does this day shape indicate?

A vessel at anchor.
A vessel restricted in her ability to maneuver.
A vessel not under command.
A vessel aground. (Correct answer)

Correct answer: A vessel aground.

The Navigation Rules specify that a vessel aground shall exhibit three black balls in a vertical line where they can best be seen. A vessel at anchor would show one black ball, and a vessel not under command would show two black balls in a vertical line.

Question 147: What is the minimum age requirement for an individual to obtain an OUPV license?

16 years old
21 years old
25 years old
18 years old (Correct answer)

Correct answer: 18 years old

To obtain an OUPV license, an individual must meet several requirements, including being at least 18 years old. This age requirement ensures that license holders have a certain level of maturity and experience before being entrusted with the responsibility of carrying passengers for hire. Other requirements include sea service, a physical, and passing an exam.

Question 148: How often must fire extinguishers on an uninspected passenger vessel be inspected?

Annually (Correct answer)
Every six months
Every two years
Monthly

Correct answer: Annually

USCG regulations require fire extinguishers on uninspected passenger vessels to be inspected annually and maintained in good working condition.

Question 149: What physical examination form must OUPV applicants submit as part of their application?

No physical examination is required
USCG Form CG-719K signed by a licensed physician (Correct answer)
A standard driver's license medical card
A military enlistment physical

Correct answer: USCG Form CG-719K signed by a licensed physician

The CG-719K is the USCG-specific physical examination report that must be completed and signed by a licensed physician and submitted with the OUPV application.

Question 150: What is the correct radio procedure for declaring a MAYDAY?

Transmit on channel 22A and wait for a response
Activate the foghorn in a pattern of three long blasts
Transmit MAYDAY three times on channel 16 (156.8 MHz), followed by vessel identification and nature of distress (Correct answer)
Send a text message to the nearest marina

Correct answer: Transmit MAYDAY three times on channel 16 (156.8 MHz), followed by vessel identification and nature of distress

A MAYDAY call is made on VHF channel 16, stating MAYDAY three times, followed by the vessel name, position, nature of distress, and assistance needed.

Question 151: What weather phenomenon creates the most dangerous conditions for small vessels in coastal waters?

Morning fog in summer
High clouds
Steady light rain
Thunderstorms with their associated gusty winds, lightning, and reduced visibility (Correct answer)

Correct answer: Thunderstorms with their associated gusty winds, lightning, and reduced visibility

Thunderstorms produce sudden severe wind gusts, dangerous lightning, intense rain reducing visibility, and steep confused seas.

Question 152: How does shallow water affect a vessels handling?

Only affects sailboats
Increased squat, reduced rudder effectiveness, longer stopping distance, and possible bank effect (Correct answer)
The vessel handles better in shallow water
No effect on modern vessels

Correct answer: Increased squat, reduced rudder effectiveness, longer stopping distance, and possible bank effect

Shallow water causes squat, reduced rudder response, increased stopping distance, and bank suction effects.

Question 153: How many times should the hailed vessel's name be stated when calling another vessel on VHF radio?

Twice
Five times
Once
Three times (Correct answer)

Correct answer: Three times

Proper radio procedure requires stating the hailed vessel's name three times to ensure the call is received and correctly identified by the intended party.

Question 154: What is the purpose of a compass rose on a nautical chart?

To show tidal information
To indicate wind direction
To display magnetic and true north (Correct answer)
To provide depth measurements

Correct answer: To display magnetic and true north

A compass rose on a nautical chart is a diagram that displays both true north (geographic north) and magnetic north. It also indicates the magnetic variation, which is the angular difference between true north and magnetic north at that location. This information is vital for navigators to accurately convert between true bearings and magnetic compass readings, ensuring correct course plotting.

Question 155: When plotting a fix using three lines of position, what does the resulting triangle indicate?

The chart is outdated
The vessel is inside the triangle area
There are errors in the bearings taken (Correct answer)
The compass needs degaussing

Correct answer: There are errors in the bearings taken

A triangle formed by three LOPs (called a cocked hat) indicates some degree of error in the bearings. The vessels position is assumed to be within the triangle.

Question 156: Which document must be displayed on an Uninspected Passenger Vessel at all times while carrying passengers for hire?

OUPV License
Safety Equipment List
Vessel Documentation (Correct answer)
Certificate of Inspection

Correct answer: Vessel Documentation

For an Uninspected Passenger Vessel (UPV) carrying passengers for hire, the Vessel Documentation, issued by the U.S. Coast Guard, must be displayed. This document serves as proof of ownership and nationality, and it is a legal requirement for commercial vessels. While an OUPV license is required for the operator, the vessel itself needs proper documentation.

Question 157: What information does a Notice to Mariners provide?

Updates and corrections to nautical charts and publications (Correct answer)
Fishing regulations
Weather forecasts only
Commercial shipping schedules

Correct answer: Updates and corrections to nautical charts and publications

Notices to Mariners provide essential updates and corrections to nautical charts, Coast Pilots, Light Lists, and other navigation publications.

Question 158: You are plotting a course on a nautical chart with a scale of 1:80,000. On the latitude scale at the side of the chart, one minute of latitude is equal to:

One nautical mile. (Correct answer)
One kilometer.
A distance that varies depending on the longitude.
One statute mile.

Correct answer: One nautical mile.

Regardless of the chart's scale, one minute of latitude is universally accepted as being equal to one nautical mile. This is a fundamental principle of nautical chart measurement and is used for determining distance on most marine charts.

Question 159: What lateral significance do preferred channel marks have?

They indicate the only navigable route
They indicate no-wake zones
They indicate a channel junction where the preferred channel is shown by the topmost color band (Correct answer)
They mark the deepest water

Correct answer: They indicate a channel junction where the preferred channel is shown by the topmost color band

Preferred channel marks at junctions have horizontal bands of red and green. The top band indicates the preferred (primary) channel side.

Question 160: How often must an OUPV license be renewed?

Every year
It never expires
Every 5 years (Correct answer)
Every 10 years

Correct answer: Every 5 years

OUPV licenses must be renewed every 5 years, requiring proof of sea service, physical exam, drug test, and completion of any required refresher courses.

Question 161: Can an OUPV license holder legally charge customers for a guided fishing trip that includes vessel transportation?

No, because guiding and vessel operation are legally separate activities
Only if the trip is less than 2 hours in duration
Only in state waters, not in federally regulated waters
Yes, because passengers are being transported for hire (Correct answer)

Correct answer: Yes, because passengers are being transported for hire

When a guide charges a fee that includes transportation on a vessel, an OUPV license is legally required to carry up to 6 paying passengers.

OUPV / Six-Pack Captain's License

The USCG OUPV (Operator of Uninspected Passenger Vessel) exam certifies mariners to operate uninspected passenger vessels carrying up to six passengers for hire in domestic waters.

160

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210 min

Time Limit

75%

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