Oregon Boater Education Card Practice Test 2026：第4套练习测试

Oregon Boater Education Card Practice Test 练习测试第4套（共6套）：再练25道题，附答案和解释。

船只驾驶
俄勒冈州
132道题
核对于2026年10月10日

第1题，共25题
Under federal law, at what blood alcohol concentration is a recreational boat operator considered intoxicated?
- 0.12 or higher
- 0.02 or higher
- 0.08 or higher
- 0.15 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.
第2题，共25题
Your state has a different child life jacket age than the federal rule. Which rule applies on that state's waters?
- The federal rule always
- The state rule
- Whichever age is higher
- Neither; you may choose
显示答案
答案: B. The state rule
Where a state sets its own child life jacket requirement, the state rule applies on waters under that state's jurisdiction.
第3题，共25题
This marker shows a diamond with a cross and the words "SWIM AREA". What must boaters do?
- Keep it on your right when returning
- Keep out of the marked swimming area
- Anchor there to swim
- Slow down and pass through it
显示答案
答案: B. Keep out of the marked swimming area
A diamond with a cross means boats keep out. Here it protects a swimming area.
第4题，共25题
How should a give-way vessel act?
- By speeding up to cross in front
- Late, with a small turn at the last moment
- Early and with a large, obvious change of course or speed
- By sounding five short blasts and holding course
显示答案
答案: C. Early and with a large, obvious change of course or speed
The give-way vessel must take early and substantial action so the other operator can clearly see what it is doing.
第5题，共25题
What does this white marker with an orange diamond and a cross inside mean?
- Swimmers may not enter
- Boats keep out of the area
- Slow down to 5 mph
- Information 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.
第6题，共25题
A sailboat under sail (A) and a powerboat (B) are on crossing courses. Which one is the give-way vessel?
- The boat on the left
- The sailboat, A
- The powerboat, B
- The boat that is moving faster
显示答案
答案: C. The powerboat, B
A power-driven vessel must keep out of the way of a sailing vessel, unless the sailboat is overtaking it.
第7题，共25题
What sound signal does a sailing vessel give in fog or other restricted visibility?
- One prolonged and two short blasts, every 2 minutes or less
- Continuous blasts on the horn until the fog lifts
- One short blast, repeated once every minute
- Two 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.
第8题，共25题
Another vessel sounds at least five short, rapid blasts. What does it mean?
- It agrees with your plan and will hold its course
- It is about to anchor in the middle of the channel
- It is greeting you and inviting you to pass
- It 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.
第9题，共25题
Under the federal rule, which children must wear a life jacket while the boat is underway?
- Only children who cannot swim, of any age
- Under 13, unless below deck or in an enclosed cabin
- Under 6, but only when the boat is out at night
- Under 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.
第10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11题，共25题
Which boats must display a garbage placard?
- Only boats over 100 feet
- Only sailboats
- All boats of any size
- Boats 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.
第12题，共25题
A large ship can only operate safely inside a narrow channel. What must a small recreational boat do?
- Hold course because small boats have right of way
- Not get in its way
- Stop in the channel and wait
- Cross 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.
第13题，共25题
On a regulatory marker, what does an orange square or rectangle mean?
- It gives information, such as directions
- Danger ahead, such as rocks
- Boats must keep out of the area
- A 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.
第14题，共25题
Two vessels agree by VHF radio how they will pass each other. Do they still have to sound whistle signals?
- No, and sounding them would be illegal
- No, but they may
- Yes, always, before and after passing
- Yes, 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.
第15题，共25题
How should the registration number be separated into groups?
- It must be written as one long group
- With a slash between letters and numbers
- With a hyphen or a space the width of one letter
- With periods between each character
显示答案
答案: C. With a hyphen or a space the width of one letter
Spaces or hyphens equal to the width of a letter (other than I) or number (other than 1) separate the groups.
第16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.
第17题，共25题
What colors are used on regulatory and information markers?
- Red and white vertical stripes
- Green with a wide red band in the middle
- Black with one or more yellow bands
- White 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.
第18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19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20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21题，共25题
A 30-foot boat with an engine room must post which placard?
- An oil discharge placard, at least 5 by 8 inches
- A speed limit sign for the nearest marina
- A placard listing the names of the crew
- A 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.
第22题，共25题
Older B-I and B-II extinguishers are still accepted on which boats?
- All boats, of any model year
- Only boats built in 2018 or later
- Boats built in model year 2017 or earlier
- Only 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.
第23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24题，共25题
You are towing a water-skier. What is the job of the observer on board?
- Steer the skier using only hand signals
- Keep other boats from coming close to watch
- Watch the skier and tell the operator what happens
- Drive 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.
第25题，共25题
What does "not under command" mean in the Navigation Rules?
- A vessel with no licensed captain on board at the time
- A vessel that cannot maneuver because of a problem, such as a steering failure
- A vessel that is going faster than the posted speed limit
- A 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.

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