Ohio Boater Exam Practice Test 2026：第5套练习测试

Ohio Boater Exam Practice Test 练习测试第5套（共6套）：再练25道题，附答案和解释。

船只驾驶
俄亥俄州
133道题
核对于2026年10月10日

第1题，共25题
If you use pyrotechnic signals to meet the requirement, how many must you carry?
- Six signals for night use only
- Three for day use and three for night use
- Ten signals of any type, day or night
- One 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.
第2题，共25题
A sailboat is motoring with its engine and its sails are down. How is it treated under the Navigation Rules?
- As a power-driven vessel
- As a vessel not under command
- As a sailing vessel
- As a vessel at anchor
显示答案
答案: A. As a power-driven vessel
A sailboat using its engine is a power-driven vessel and follows the power-driven rules.
第3题，共25题
What does an engine cut-off switch link do?
- Stops the engine if the operator is thrown from the helm
- Locks the steering wheel when you are not aboard
- Turns on the navigation lights automatically
- Starts the bilge blower before the engine starts
显示答案
答案: A. Stops the engine if the operator is thrown from the helm
The lanyard links the operator to the switch. If the operator is thrown from the helm, the link pulls free and the engine shuts off.
第4题，共25题
Why is sudden immersion in cold water so dangerous in the first minutes?
- Your body freezes solid within seconds
- Cold water is much harder to float in
- Life jackets stop working in cold water
- Cold 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.
第5题，共25题
Light 4 in the diagram is the white sternlight. How wide is its arc?
- 225 degrees, toward the front
- 360 degrees, all around
- 112.5 degrees, on one side
- 135 degrees, toward the back
显示答案
答案: D. 135 degrees, toward the back
The sternlight shines over 135 degrees behind the boat. The masthead light covers 225 degrees forward.
第6题，共25题
Which non-pyrotechnic signal counts for nighttime use only?
- A red pennant
- An orange smoke signal
- An electric distress light
- An 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.
第7题，共25题
What does this black buoy with a red band and two black balls on top mean?
- The center of a safe channel or fairway
- An isolated danger with safe water around it
- A mooring area where boats may tie up
- The start of a no-wake zone near shore
显示答案
答案: B. An isolated danger with safe water around it
Isolated danger marks are placed on or near a danger, such as a rock, that has navigable water around it. Do not pass close.
第8题，共25题
What must a boat 12 meters (39.4 feet) or longer carry for sound signals?
- A referee whistle for the operator
- A small hand bell kept at the helm
- A whistle audible for 1/2 nautical mile
- Nothing beyond a working VHF radio
显示答案
答案: C. A whistle audible for 1/2 nautical mile
Vessels 12 meters or longer need a whistle (horn) audible for 1/2 nautical mile. Vessels 20 meters or longer also need a bell.
第9题，共25题
Two powerboats meet head-on. What should each operator do?
- The larger boat holds course and the smaller turns
- Turn to port and pass starboard to starboard
- Both stop and wait for the other to move
- Turn to starboard and pass port side to port side
显示答案
答案: D. Turn to starboard and pass port side to port side
In a head-on meeting, each vessel alters course to starboard so they pass port to port.
第10题，共25题
How long should you run the blower before starting a gasoline inboard engine?
- At least 20 minutes
- Only while the engine is cranking
- About 10 seconds
- At least 4 minutes
显示答案
答案: D. At least 4 minutes
Boats with powered blowers carry a warning label: run the blower at least four minutes and check the bilge for gasoline vapors before starting.
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?
- Two short blasts
- One short blast
- One prolonged blast
- Three 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".
第12题，共25题
Is it legal to tie your boat to a navigation buoy?
- No, it is dangerous and illegal
- Yes, if you stay less than an hour
- Yes, if the buoy is green
- Yes, but only in daylight
显示答案
答案: A. No, it is dangerous and illegal
Do not tie up to aids to navigation. It is dangerous and illegal, and it can hide the aid from other boaters.
第13题，共25题
Which non-pyrotechnic signal counts for daytime use only?
- An orange distress flag, 3 by 3 feet
- A white all-round anchor light
- An electric distress light
- A 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.
第14题，共25题
On inland waters, what signal does a power-driven vessel sound when it leaves a dock or berth?
- One short blast
- Two prolonged blasts
- One prolonged blast
- Five short blasts
显示答案
答案: C. One prolonged blast
A power-driven vessel leaving a dock or berth sounds one prolonged blast.
第15题，共25题
This white buoy with a blue band is a mooring buoy. What is it for?
- Warning of a hidden rock
- Marking the right side of a channel
- Marking a no-wake zone
- Tying up or securing a boat
显示答案
答案: D. Tying up or securing a boat
Mooring buoys are white with a horizontal blue band. They are made for boats to tie up to.
第16题，共25题
What is the maximum federal criminal penalty for boating under the influence?
- A written warning, with no fine
- Up to $5,000, one year in prison, or both
- Loss of your car driver license only
- A fine of up to $50 and a short class
显示答案
答案: B. Up to $5,000, one year in prison, or both
Federal BUI penalties include a civil penalty of up to $1,000, or a criminal penalty of up to $5,000, one year in prison, or both.
第17题，共25题
Someone is injured and needs medical treatment beyond first aid. How soon must the written report be filed?
- Within 10 days
- Within 48 hours
- Within 30 days
- Within one year
显示答案
答案: B. Within 48 hours
Reports are due within 48 hours for a death within 24 hours, an injury beyond first aid, or a disappearance. Other reportable accidents must be reported within 10 days.
第18题，共25题
Which feature means a boat must carry a fire extinguisher?
- Permanently installed fuel tanks
- A swim ladder at the stern
- A locker for the anchor and line
- A canvas bimini top for shade
显示答案
答案: A. Permanently installed fuel tanks
Extinguishers are required on boats with features such as closed compartments where fuel tanks may be stored, permanently installed fuel tanks or closed living spaces.
第19题，共25题
What does a yellow buoy like this tell you?
- Danger: rocks are right below the buoy
- It marks a special area, not a channel side
- There is safe water all around it
- Keep 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.
第20题，共25题
Your powerboat is approaching a vessel engaged in fishing with nets. What must you do?
- Keep out of its way
- Sound five short blasts and continue
- Hold your course; it must move for you
- Pass close to look at its gear
显示答案
答案: A. Keep out of its way
A power-driven vessel underway must keep out of the way of a vessel engaged in fishing, which has nets or gear that limit its movement.
第21题，共25题
Your flares expired last year. Do they count toward the requirement?
- Yes, for up to 5 years after expiry
- Yes, if they are kept dry
- No, expired pyrotechnics do not count
- Yes, but only at night
显示答案
答案: C. No, expired pyrotechnics do not count
Pyrotechnic signals must be in date. Expired signals do not meet the requirement.
第22题，共25题
You see this red flag with a white diagonal stripe. What does it mean?
- The beach ahead is private property
- Shallow water ahead; boats should turn back
- Divers are nearby; slow down and keep well away
- A water-ski course is set up in this area
显示答案
答案: C. Divers are nearby; slow down and keep well away
The diver-down flag marks an area where people are diving. State laws set how far away boats must stay.
第23题，共25题
Where does the state validation decal go?
- On the stern, right next to the motor
- Within 6 inches of the registration number
- Inside the glove box, with the papers
- On the boat trailer's left fender
显示答案
答案: B. Within 6 inches of the registration number
The validation decal goes within 6 inches of the registration number, with no other numbers or letters nearby.
第24题，共25题
In fog, what signal does a power-driven vessel give while it is moving through the water?
- A bell rung once every 5 minutes
- Two short blasts every minute
- Three short blasts every 2 minutes
- One prolonged blast at least every 2 minutes
显示答案
答案: D. One prolonged blast at least every 2 minutes
In restricted visibility, a power-driven vessel making way sounds one prolonged blast at intervals of no more than 2 minutes.
第25题，共25题
What sound-producing device must a boat under 12 meters (39.4 feet) carry?
- A bell and a gong mounted on deck
- A siren, like those used on police boats
- Nothing; shouting loudly is enough
- An efficient sound device, such as a horn or whistle
显示答案
答案: D. An efficient sound device, such as a horn or whistle
Boats under 12 meters must carry an efficient sound-producing device, such as a hand-held air horn or a whistle. A human voice is not acceptable.

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