Virginia Boater Exam Practice Test 2026：第4套练习测试

1. 第1题，共25题

   Why is sudden immersion in cold water so dangerous in the first minutes?

   • AYour body freezes solid within seconds
   • BCold water is much harder to float in
   • CLife jackets stop working in cold water
   • DCold shock makes you gasp and breathe in water
   显示答案

   答案: D. Cold shock makes you gasp and breathe in water

   Sudden immersion triggers a gasp reflex and fast breathing. Without a life jacket, you can inhale water and drown before hypothermia even starts.

2. 第2题，共25题

   You are returning from sea. On which side should you keep this green buoy?

   • AOn your port (left) side
   • BOn your starboard (right) side
   • COn either side
   • DDirectly ahead of you
   显示答案

   答案: A. On your port (left) side

   Green lateral markers mark the port side of the channel when you return from sea. Keep them on your left.

3. 第3题，共25题

   On inland waters, what do two short blasts mean when two power-driven vessels meet or cross in sight of each other?

   • A"I intend to leave you on my starboard side"
   • B"I intend to leave you on my port side"
   • C"I am leaving the dock"
   • D"I am anchored"
   显示答案

   答案: A. "I intend to leave you on my starboard side"

   Under Inland Rule 34, two short blasts mean "I intend to leave you on my starboard side".

4. 第4题，共25题

   A 32-foot boat built in 2020 needs fire extinguishers. Which choice meets the requirement (with no fixed system)?

   • AOne 5-B extinguisher
   • BOne household 1-A unit
   • CThree 20-B extinguishers
   • DTwo 5-B, or one 20-B
   显示答案

   答案: D. Two 5-B, or one 20-B

   Boats 26 feet to under 40 feet need two 5-B extinguishers. Because one 20-B can replace two 5-B extinguishers, one 20-B also meets the rule.

5. 第5题，共25题

   If you use pyrotechnic signals to meet the requirement, how many must you carry?

   • ASix signals for night use only
   • BThree for day use and three for night use
   • CTen signals of any type, day or night
   • DOne for day use and one for night use
   显示答案

   答案: B. Three for day use and three for night use

   Carry at least three day and three night signals. Combination day/night flares can count toward both.

6. 第6题，共25题

   A large ship can only operate safely inside a narrow channel. What must a small recreational boat do?

   • AHold course because small boats have right of way
   • BNot get in its way
   • CStop in the channel and wait
   • DCross in front of it to show its position
   显示答案

   答案: B. Not get in its way

   Vessels under 20 meters (65.6 feet) and sailing vessels must not impede a vessel that can navigate safely only within a narrow channel.

7. 第7题，共25题

   What is a "safe speed"?

   • AA speed that lets you stop or turn in time
   • BThe speed posted at the nearest launch ramp
   • CAny speed under 10 mph, in all conditions
   • DThe highest speed your boat can safely reach
   显示答案

   答案: A. A speed that lets you stop or turn in time

   Safe speed depends on visibility, traffic, wind, waves and your boat. You must be able to avoid a collision and stop in time.

8. 第8题，共25题

   On a regulatory marker, what does an orange square or rectangle mean?

   • AIt gives information, such as directions
   • BDanger ahead, such as rocks
   • CBoats must keep out of the area
   • DA speed limit applies in the area
   显示答案

   答案: A. It gives information, such as directions

   Squares give information. Diamonds warn of danger, diamonds with a cross mean keep out, and circles mark controlled areas.

9. 第9题，共25题

   You see this marker with an orange circle and the number 10 inside. What does it tell you?

   • AA speed limit applies in the area
   • B10 boats may anchor here
   • CIt is buoy number 10 in the channel
   • DThe water is 10 feet deep
   显示答案

   答案: A. A speed limit applies in the area

   A circle marks a controlled area. A number inside shows the speed limit that applies.

10. 第10题，共25题

    What sound signal does a sailing vessel give in fog or other restricted visibility?

    • AOne prolonged and two short blasts, every 2 minutes or less
    • BContinuous blasts on the horn until the fog lifts
    • COne short blast, repeated once every minute
    • DTwo prolonged blasts, at least every 2 minutes
    显示答案

    答案: A. One prolonged and two short blasts, every 2 minutes or less

    A sailing vessel in restricted visibility sounds one prolonged and two short blasts at intervals of no more than 2 minutes.

11. 第11题，共25题

    On inland waters, you want to overtake a power-driven vessel and pass on its starboard side. What signal do you give?

    • ATwo short blasts
    • BOne short blast
    • COne prolonged blast
    • DThree short blasts
    显示答案

    答案: B. One short blast

    Inland, one short blast means "I intend to overtake you on your starboard side". Two short blasts mean "on your port side".

12. 第12题，共25题

    Under the federal rule, which children must wear a life jacket while the boat is underway?

    • AOnly children who cannot swim, of any age
    • BUnder 13, unless below deck or in an enclosed cabin
    • CUnder 6, but only when the boat is out at night
    • DUnder 18, at all times when they are on board
    显示答案

    答案: B. Under 13, unless below deck or in an enclosed cabin

    The federal rule requires children under 13 to wear an approved life jacket while underway, unless below deck or in an enclosed cabin.

13. 第13题，共25题

    What does a yellow buoy like this tell you?

    • ADanger: rocks are right below the buoy
    • BIt marks a special area, not a channel side
    • CThere is safe water all around it
    • DKeep it on your right when returning
    显示答案

    答案: B. It marks a special area, not a channel side

    Special marks are yellow. They point out a special area or feature and are not lateral channel markers.

14. 第14题，共25题

    What does "not under command" mean in the Navigation Rules?

    • AA vessel with no licensed captain on board at the time
    • BA vessel that cannot maneuver because of a problem, such as a steering failure
    • CA vessel that is going faster than the posted speed limit
    • DA vessel that is anchored or tied to a mooring buoy
    显示答案

    答案: B. A vessel that cannot maneuver because of a problem, such as a steering failure

    A vessel not under command cannot keep out of the way because of an exceptional circumstance. Other vessels, including sailboats, must keep clear of it.

15. 第15题，共25题

    Two sailboats meet with the wind on different sides. Which must keep clear?

    • AThe boat with the wind on its port side
    • BThe boat with the wind on its starboard side
    • CThe larger sailboat
    • DThe boat that is to leeward
    显示答案

    答案: A. The boat with the wind on its port side

    When sailing vessels have the wind on different sides, the one with the wind on its port side keeps out of the way.

16. 第16题，共25题

    Another vessel sounds at least five short, rapid blasts. What does it mean?

    • AIt agrees with your plan and will hold its course
    • BIt is about to anchor in the middle of the channel
    • CIt is greeting you and inviting you to pass
    • DIt doubts your intentions or your action to avoid a collision
    显示答案

    答案: D. It doubts your intentions or your action to avoid a collision

    Five or more short, rapid blasts is the doubt or danger signal. Slow down and make your intentions clear.

17. 第17题，共25题

    How many wearable life jackets must a recreational boat carry?

    • AOne for every two people on board
    • BOne approved life jacket for each person
    • CTwo for the whole boat, of any size
    • DOne for the operator only
    显示答案

    答案: B. One approved life jacket for each person

    Federal rules require one wearable, Coast Guard-approved life jacket for each person aboard.

18. 第18题，共25题

    When must the operator of a covered boat use the engine cut-off switch link?

    • AOnly when towing a skier or a tube
    • BWhen on plane or above displacement speed
    • COnly when docking at a marina or ramp
    • DOnly when operating after dark
    显示答案

    答案: B. When on plane or above displacement speed

    Since April 1, 2021, operators of covered boats must use the engine cut-off switch link when running on plane or above displacement speed.

19. 第19题，共25题

    How tall must the letters and numbers of the registration number be?

    • AAt least 12 inches, in any color
    • BAt least 6 inches, in script letters
    • CAt least 3 inches, in block characters
    • DAt least 1 inch, in any style
    显示答案

    答案: C. At least 3 inches, in block characters

    The registration number must be in plain block characters at least 3 inches high, in a color that contrasts with the hull.

20. 第20题，共25题

    Which boats must display a garbage placard?

    • AOnly boats over 100 feet
    • BOnly sailboats
    • CAll boats of any size
    • DBoats 26 feet and longer
    显示答案

    答案: D. Boats 26 feet and longer

    Vessels 26 feet or longer must display a garbage placard at least 4 by 9 inches in a prominent place.

21. 第21题，共25题

    You are returning from sea. On which side should you keep this red buoy?

    • AOn your port (left) side
    • BOn either side
    • COnly on your left at night
    • DOn your starboard (right) side
    显示答案

    答案: D. On your starboard (right) side

    Remember "red, right, returning": keep red markers on your starboard side when returning from sea.

22. 第22题，共25题

    What does this white marker with an orange circle mean?

    • AA controlled area; here, no wake
    • BDanger from rocks right below
    • CBoats must keep out of the area
    • DDirections to a nearby marina
    显示答案

    答案: A. A controlled area; here, no wake

    An orange circle marks a controlled area, such as a no-wake or speed-limit zone. The rule is written inside the circle.

23. 第23题，共25题

    In a narrow channel, which side should you keep to?

    • AThe starboard (right) side
    • BWhichever side has less traffic
    • CThe center of the channel
    • DThe port (left) side
    显示答案

    答案: A. The starboard (right) side

    In a narrow channel, keep as near to the outer edge on your starboard side as is safe.

24. 第24题，共25题

    Which non-pyrotechnic signal counts for nighttime use only?

    • AA red pennant
    • BAn orange smoke signal
    • CAn electric distress light
    • DAn orange distress flag
    显示答案

    答案: C. An electric distress light

    An electric distress light meets the night requirement. An orange flag only counts during the day.

25. 第25题，共25题

    Which non-pyrotechnic signal counts for daytime use only?

    • AAn orange distress flag, 3 by 3 feet
    • BA white all-round anchor light
    • CAn electric distress light
    • DA green flashlight, held up high
    显示答案

    答案: A. An orange distress flag, 3 by 3 feet

    An orange distress flag is a day signal. An electric distress light is a night signal.

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