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

1. 第1题，共25题

   You are towing a water-skier. What is the job of the observer on board?

   • ASteer the skier using only hand signals
   • BKeep other boats from coming close to watch
   • CWatch the skier and tell the operator what happens
   • DDrive the boat while the operator watches
   显示答案

   答案: C. Watch the skier and tell the operator what happens

   The operator must watch where the boat is going, so a second person keeps a continuous eye on the skier and reports falls and signals.

2. 第2题，共25题

   Two vessels agree by VHF radio how they will pass each other. Do they still have to sound whistle signals?

   • ANo, and sounding them would be illegal
   • BNo, but they may
   • CYes, always, before and after passing
   • DYes, but only at night
   显示答案

   答案: B. No, but they may

   Vessels that reach agreement by radio do not have to sound the whistle signals. If they cannot agree, whistle signals must be exchanged and they prevail.

3. 第3题，共25题

   Several people are in cold water wearing life jackets. How can they stay warmer?

   • ASpread out to be seen
   • BFloat on their backs far apart
   • CHuddle close together
   • DTake turns swimming laps
   显示答案

   答案: C. Huddle close together

   The huddle position reduces heat loss and keeps the group together for rescuers.

4. 第4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.

5. 第5题，共25题

   Which light does a boat show when anchored at night?

   • AAn all-round red light
   • BIts red and green sidelights
   • CAn all-round white light
   • DA flashing yellow light
   显示答案

   答案: C. An all-round white light

   A vessel at anchor shows an all-round white light at night and a black ball by day.

6. 第6题，共25题

   A 30-foot boat with an engine room must post which placard?

   • AAn oil discharge placard, at least 5 by 8 inches
   • BA speed limit sign for the nearest marina
   • CA placard listing the names of the crew
   • DA no-smoking sign, at least 2 by 3 inches
   显示答案

   答案: A. An oil discharge placard, at least 5 by 8 inches

   Boats 26 feet or longer with a machinery space must post an oil discharge placard at least 5 by 8 inches in the machinery space or at the bilge pump station.

7. 第7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.

8. 第8题，共25题

   What should the stand-on vessel do in a crossing situation?

   • AKeep its course and speed
   • BSpeed up to get clear faster
   • CStop its engine right away
   • DTurn toward the other boat
   显示答案

   答案: A. Keep its course and speed

   The stand-on vessel holds its course and speed so the give-way vessel can predict its path.

9. 第9题，共25题

   Which compartments need a powered exhaust blower?

   • AOnly compartments used to store life jackets and lines
   • BThose with a gasoline engine that has a remote-start motor
   • CEvery compartment on every boat, of any kind
   • DOnly cabins that have a toilet or a sink
   显示答案

   答案: B. Those with a gasoline engine that has a remote-start motor

   A powered blower is required for compartments with a permanently installed gasoline engine that has a cranking motor for remote starting.

10. 第10题，共25题

    A collision causes $3,000 in damage but no injuries. How soon must it be reported?

    • AWithin 10 days
    • BIt does not need to be reported
    • CWithin 2 hours
    • DWithin 48 hours
    显示答案

    答案: A. Within 10 days

    Accidents with damage only (of $2,000 or more) must be reported within 10 days.

11. 第11题，共25题

    Older B-I and B-II extinguishers are still accepted on which boats?

    • AAll boats, of any model year
    • BOnly boats built in 2018 or later
    • CBoats built in model year 2017 or earlier
    • DOnly personal watercraft of any year
    显示答案

    答案: C. Boats built in model year 2017 or earlier

    Coast Guard B-I and B-II extinguishers are acceptable only on vessels built in model year 2017 or earlier.

12. 第12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.

13. 第13题，共25题

    You are alone in cold water wearing a life jacket and cannot climb out. What should you do?

    • ASplash and kick constantly to stay visible
    • BTake off your life jacket so you can move freely
    • CSwim hard in circles to keep your body warm
    • DFold your arms, cross your legs and float still
    显示答案

    答案: D. Fold your arms, cross your legs and float still

    The Heat Escape Lessening Posture (HELP) reduces heat loss. Swim only if safety is very close.

14. 第14题，共25题

    What colors are used on regulatory and information markers?

    • ARed and white vertical stripes
    • BGreen with a wide red band in the middle
    • CBlack with one or more yellow bands
    • DWhite with orange bands at top and bottom
    显示答案

    答案: D. White with orange bands at top and bottom

    Regulatory and information markers are white with an orange band near the top and bottom. The orange shape shows the meaning.

15. 第15题，共25题

    Instead of a lanyard, what other type of engine cut-off device is approved?

    • AA warning sticker placed on the dashboard
    • BA loud alarm that sounds but does not stop the engine
    • CA rope tied between the helm and the ladder
    • DA wireless fob that stops the engine in water
    显示答案

    答案: D. A wireless fob that stops the engine in water

    Wireless engine cut-off devices, worn by the operator, stop the engine when the fob goes into the water.

16. 第16题，共25题

    Boat B is crossing from boat A's starboard (right) side. Which boat is the give-way vessel?

    • ABoat A
    • BWhichever boat is faster
    • CBoat B
    • DNeither; both must stop
    显示答案

    答案: A. Boat A

    When two power-driven vessels cross, the one that has the other on its starboard side must keep out of the way. Boat A slows or turns right to pass behind B.

17. 第17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.

18. 第18题，共25题

    What does NASBLA stand for?

    • ANorth American Society of Boat Licensing Authorities
    • BNational Association of State Boating Law Administrators
    • CNational Alliance of Sailing and Boating Leagues
    • DNational Agency for Safe Boating and Lifesaving Activities
    显示答案

    答案: B. National Association of State Boating Law Administrators

    NASBLA is the national association of state boating law administrators. Most state boater education courses are NASBLA-approved.

19. 第19题，共25题

    On inland waters, a power-driven vessel meeting you sounds one short blast. What does it mean?

    • A"I am operating astern propulsion"
    • B"I am in distress"
    • C"I intend to leave you on my port side"
    • D"I intend to leave you on my starboard side"
    显示答案

    答案: C. "I intend to leave you on my port side"

    Under Inland Rule 34, one short blast means "I intend to leave you on my port side". If you agree, answer with one short blast.

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

    Under federal law, at what blood alcohol concentration is a recreational boat operator considered intoxicated?

    • A0.12 or higher
    • B0.02 or higher
    • C0.08 or higher
    • D0.15 or higher
    显示答案

    答案: C. 0.08 or higher

    Operating a vessel with a blood alcohol concentration of 0.08 or higher is a federal violation. States also have their own BUI laws.

22. 第22题，共25题

    What does this white marker with an orange diamond and a cross inside mean?

    • ASwimmers may not enter
    • BBoats keep out of the area
    • CSlow down to 5 mph
    • DInformation about a nearby marina
    显示答案

    答案: B. Boats keep out of the area

    A diamond with a cross marks an exclusion area. Boats must keep out, for example near dams or swimming areas.

23. 第23题，共25题

    Your boat is 14 feet long and you are on coastal waters. Which visual distress signals are required?

    • ADay and night signals at all times on the water
    • BNo signals at any time, because it is under 16 feet
    • CDay signals only, when out between sunrise and sunset
    • DNight signals, when out between sunset and sunrise
    显示答案

    答案: D. Night signals, when out between sunset and sunrise

    Boats under 16 feet are exempt from day signal requirements but must carry night signals when operating from sunset to sunrise.

24. 第24题，共25题

    A 22-foot outboard boat has a closed compartment where a portable fuel tank is stored. How many 5-B extinguishers does it need?

    • ATwo
    • BThree
    • CNone
    • DOne
    显示答案

    答案: D. One

    Boats under 26 feet that need an extinguisher must carry one 5-B extinguisher (or none if a fixed system is installed in the machinery space).

25. 第25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.

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