California DMV Practice Test 2026：第3套练习测试

California DMV Practice Test 练习测试第3套（共8套）：再练25道题，附答案和解释。

驾驶
加利福尼亚州
205道题
核对于2026年10月10日

第1题，共25题
You see this sign while driving in the rain. What should you do?
- Pump your brakes often to dry them
- Drive on the shoulder
- Speed up to get past quickly
- Slow down and avoid sudden braking or sharp turns
显示答案
答案: D. Slow down and avoid sudden braking or sharp turns
Wet roads can make your tires lose grip. Slow down, leave more space, and steer and brake gently.
第2题，共25题
Which of these is a warning sign that you are too sleepy to drive?
- Checking your mirrors often
- Wanting to change the radio station
- Feeling hungry
- Drifting over lane lines or hitting rumble strips
显示答案
答案: D. Drifting over lane lines or hitting rumble strips
Drifting from your lane or hitting rumble strips means you are drowsy. Stop in a safe place and rest.
第3题，共25题
A school bus has stopped on this two-lane road with its red lights flashing and its stop arm out. Which cars must stop?
- Both Car 1 and Car 2
- Only Car 2, facing the bus
- Neither car, if no child is in the road
- Only Car 1, behind the bus
显示答案
答案: A. Both Car 1 and Car 2
On a two-lane road, traffic from both directions must stop for a school bus with flashing red lights.
第4题，共25题
Someone is hurt in a crash. When should you move the injured person?
- Always, to make them comfortable
- Only if there is a danger such as fire
- Right away, to check for injuries
- Only to drive them to the hospital yourself
显示答案
答案: B. Only if there is a danger such as fire
Moving an injured person can make injuries worse. Move them only if they face a life-threatening danger, and call for help.
第5题，共25题
How far should you sit from the air bag in the steering wheel?
- At least 3 feet
- As close as you can
- At least 10 inches
- At least 2 inches
显示答案
答案: C. At least 10 inches
Sit at least 10 inches from the air bag cover, as long as you can still control the vehicle safely.
第6题，共25题
What does this sign mean?
- A toll road
- A US highway route
- A route on the Interstate highway system
- A state park road
显示答案
答案: C. A route on the Interstate highway system
The red, white and blue shield marks an Interstate highway route.
第7题，共25题
What is the only thing that lowers your blood alcohol concentration?
- Time
- Exercise
- A cold shower
- Black coffee
显示答案
答案: A. Time
Your body removes alcohol slowly. Coffee, exercise and cold showers do not lower your BAC.
第8题，共25题
You stopped for a school bus with flashing red lights. When may you drive on?
- After waiting about 30 seconds
- When the bus driver honks
- As soon as you see the children on the sidewalk
- Only after the red lights stop flashing
显示答案
答案: D. Only after the red lights stop flashing
Stay stopped for as long as the red lights are flashing. Then watch for children before you move.
第9题，共25题
What does this sign mean?
- A YIELD sign is ahead; be ready to slow down or stop
- No passing
- A railroad crossing is ahead
- Merge into the next lane now
显示答案
答案: A. A YIELD sign is ahead; be ready to slow down or stop
Slow down so you can yield to traffic at the YIELD sign ahead.
第10题，共25题
What does this sign mean?
- Pedestrians are not allowed on this road
- The sidewalk ends ahead
- Pedestrians must yield to cars here
- People may be crossing; slow down and yield to pedestrians
显示答案
答案: D. People may be crossing; slow down and yield to pedestrians
Watch for people crossing the road. Be ready to stop and yield to pedestrians in a crosswalk.
第11题，共25题
Only one kind of sign has this shape. What is the shape called?
- Diamond
- Octagon (8 sides)
- Hexagon (6 sides)
- Pentagon (5 sides)
显示答案
答案: B. Octagon (8 sides)
The eight-sided octagon is used only for STOP signs, so you can recognize it even from behind or when it is covered with snow.
第12题，共25题
What should you do when you see this sign?
- Pass the car in front before you reach the crosswalk
- Honk to warn the children
- Slow down, watch for children, and stop for anyone in the crosswalk
- Speed up to get past the crosswalk quickly
显示答案
答案: C. Slow down, watch for children, and stop for anyone in the crosswalk
The arrow points to the school crosswalk. Stop for children in the crosswalk and follow any crossing guard. Never pass a vehicle stopped for pedestrians.
第13题，共25题
The gates at a railroad crossing are coming down. What should you do?
- Speed up and go under the gates
- Stop on the tracks until the gates rise
- Stop and wait until the gates are up and the lights stop flashing
- Drive around the gates if you cannot see a train
显示答案
答案: C. Stop and wait until the gates are up and the lights stop flashing
Never drive around or under lowered or lowering gates. Wait until they are fully up.
第14题，共25题
What does this sign mean?
- Traffic joining from the side gets its own lane, so it does not need to merge
- Two-way traffic ahead
- The road narrows ahead
- You must merge left now
显示答案
答案: A. Traffic joining from the side gets its own lane, so it does not need to merge
The entering traffic gets a new lane. Still watch for drivers who change lanes.
第15题，共25题
Which headlights should you use in fog?
- Low beams
- High beams
- No lights, to reduce glare
- Parking lights only
显示答案
答案: A. Low beams
High beams reflect off fog and cause glare. Low beams help you see and help others see you.
第16题，共25题
Reading or sending a text takes your eyes off the road for about 5 seconds. At 55 mph, how far do you travel in that time?
- About 10 feet
- About one car length
- About one mile
- About the length of a football field
显示答案
答案: D. About the length of a football field
At 55 mph, 5 seconds of looking at a phone is like driving the length of a football field with your eyes closed.
第17题，共25题
Your car starts to hydroplane. What should you do?
- Turn sharply toward the shoulder
- Brake hard right away
- Speed up to get through the water
- Ease off the gas and keep the wheel straight without braking hard
显示答案
答案: D. Ease off the gas and keep the wheel straight without braking hard
Slowly take your foot off the gas and hold the wheel steady until the tires grip again. Do not use the brakes hard.
第18题，共25题
Your car has anti-lock brakes (ABS). How should you brake in an emergency?
- Pull the parking brake
- Press the brake pedal firmly and keep pressing
- Tap the brake lightly
- Pump the brake pedal quickly
显示答案
答案: B. Press the brake pedal firmly and keep pressing
With ABS, press hard and hold steady pressure. The system pumps the brakes for you and lets you steer.
第19题，共25题
You see this orange and red triangle on the back of a farm tractor. What does it mean?
- The vehicle moves much slower than normal traffic, so slow down early
- The vehicle is about to turn
- The vehicle is an emergency vehicle
- The vehicle is carrying hazardous materials
显示答案
答案: A. The vehicle moves much slower than normal traffic, so slow down early
The slow-moving vehicle emblem is used on farm equipment, construction equipment and animal-drawn vehicles.
第20题，共25题
Compared with a sober driver, about how much more likely is a driver with a BAC of 0.08% to crash?
- About 20 times
- About the same
- About 4 times
- About 1.5 times
显示答案
答案: C. About 4 times
Drivers at a BAC of 0.08% are about four times more likely to crash than drivers with no alcohol.
第21题，共25题
When may you pass another vehicle on the right?
- When the vehicle ahead is turning left and there is room to pass safely
- When you can use the shoulder
- Whenever the vehicle ahead is slow
- Only on a two-lane road
显示答案
答案: A. When the vehicle ahead is turning left and there is room to pass safely
You may pass on the right only when it is safe, such as when the car ahead is turning left or on a road with two or more lanes your way. Never use the shoulder.
第22题，共25题
Where should you stop at this sign if there is a crosswalk but no stop line?
- After the crosswalk, at the edge of the cross street
- Inside the intersection, where you can see best
- Before the crosswalk
- In the middle of the crosswalk
显示答案
答案: C. Before the crosswalk
Stop at the stop line. If there is no line, stop before the crosswalk. If there is no crosswalk, stop before you enter the intersection.
第23题，共25题
What does a flashing red traffic light mean?
- The light is about to turn green
- Stop only if other cars are coming
- Stop completely, then go when it is safe
- Slow down and go with care without stopping
显示答案
答案: C. Stop completely, then go when it is safe
A flashing red light means the same as a stop sign: come to a full stop, then go when the way is clear.
第24题，共25题
Which road users are especially hard to see at night?
- Trucks with clearance lights
- Police cars with lights flashing
- Buses with interior lights on
- Pedestrians, bicyclists and motorcyclists
显示答案
答案: D. Pedestrians, bicyclists and motorcyclists
People walking, cycling or riding motorcycles are much harder to see in the dark. Slow down and look carefully.
第25题，共25题
Besides police cars, which stopped vehicle with flashing lights should you also slow down and move over for?
- A tow truck helping a driver on the shoulder
- A car parked in a driveway
- A delivery van parked at the curb
- A bus at a bus stop with no lights flashing
显示答案
答案: A. A tow truck helping a driver on the shoulder
In many states, Move Over rules also cover tow trucks and highway work vehicles with flashing lights. Giving them space protects the people working beside the road.

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