California DMV Practice Test 2026：第5套练习测试

California DMV Practice Test 练习测试第5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
Which of these makes your stopping distance longer?
- A wet or icy road
- Driving more slowly
- Tires with deep tread
- Paying full attention
显示答案
答案: A. A wet or icy road
Wet, snowy and icy roads give your tires less grip, so it takes longer to stop. Slow down and leave more space.
第2题，共25题
You are entering a freeway from an on-ramp, as shown. What should you do in the acceleration lane?
- Merge right away without checking traffic
- Drive slowly so freeway drivers notice you
- Speed up to match freeway traffic, then merge into a safe gap
- Stop at the end of the ramp and wait for a big gap
显示答案
答案: C. Speed up to match freeway traffic, then merge into a safe gap
Use the acceleration lane to reach the speed of traffic, check mirrors and your blind spot, signal, and merge into a gap.
第3题，共25题
Where are a large truck's blind spots, or No-Zones?
- In front, behind and along both sides
- Trucks have no blind spots because the driver sits up high
- Only on the left side
- Only directly behind it
显示答案
答案: A. In front, behind and along both sides
Large trucks and buses have big blind spots on all four sides. Do not stay in them.
第4题，共25题
Your car goes into deep water and starts to sink. What should you do?
- Stay buckled and wait for help
- Unbuckle and escape through a window
- Open a door right away
- Turn the engine off and on again
显示答案
答案: B. Unbuckle and escape through a window
Get out through a window. Opening a door can let water rush in and roll the car over.
第5题，共25题
What does this sign mean?
- One sharp curve to the right is ahead
- A series of curves is ahead
- The road is slippery ahead
- Lanes shift ahead
显示答案
答案: B. A series of curves is ahead
The road has three or more curves in a row. Slow down and stay in your lane.
第6题，共25题
How can you check that you are not following another vehicle too closely?
- Watch for the brake lights of the vehicle ahead
- Look at your speedometer
- Count how many car lengths you see
- When the vehicle ahead passes a fixed object, count the seconds until you reach it
显示答案
答案: D. When the vehicle ahead passes a fixed object, count the seconds until you reach it
Pick a fixed object such as a sign. Start counting when the car ahead passes it; if you reach it before you finish the count, you are too close.
第7题，共25题
What does this sign mean?
- A four-way intersection
- A railroad crossing; yield to any train
- You must always stop here, even when no train is near
- A hospital is nearby
显示答案
答案: B. A railroad crossing; yield to any train
Treat a crossbuck like a yield sign. Slow down, look and listen both ways, and stop if a train is coming. Trains always have the right-of-way.
第8题，共25题
If you double your speed, about how much longer does it take to stop once you brake?
- About the same distance
- About half as far
- About four times as far
- About twice as far
显示答案
答案: C. About four times as far
Braking distance grows with the square of speed, so doubling your speed makes it about four times longer.
第9题，共25题
What does this sign mean?
- You must not drive into this road from where you are
- The road is closed to trucks only
- Stop, then enter when the way is clear
- One-way street; turn here
显示答案
答案: A. You must not drive into this road from where you are
This sign is posted where you would be going the wrong way, such as a freeway exit ramp or the end of a one-way street. Do not enter.
第10题，共25题
What usually happens if you refuse a chemical test after an arrest for impaired driving?
- You get a written warning
- Nothing happens
- Your driver license is suspended or revoked
- You must retake the written test only
显示答案
答案: C. Your driver license is suspended or revoked
Refusing a test brings its own penalties, including losing your license, even if you are not convicted of impaired driving.
第11题，共25题
When is it right to use your high-beam headlights?
- On dark, open roads when no vehicles are close ahead or coming toward you
- In fog
- In busy city traffic
- When following another car closely
显示答案
答案: A. On dark, open roads when no vehicles are close ahead or coming toward you
High beams help you see farther on dark roads, but dim them for oncoming traffic and when following another vehicle.
第12题，共25题
Two cars meet on a steep, narrow mountain road where neither can pass. Which car has the right-of-way?
- The car that is larger
- The car with more passengers
- The car facing uphill
- The car facing downhill
显示答案
答案: C. The car facing uphill
The vehicle facing uphill has the right-of-way. The vehicle facing downhill should back up until the other car can pass.
第13题，共25题
What does this sign mean?
- A passing lane is ahead
- Traffic ahead travels in both directions on the same road
- Two lanes go your way
- A divided highway begins
显示答案
答案: B. Traffic ahead travels in both directions on the same road
You are leaving a one-way road or divided highway. Oncoming traffic will be beside you, so keep right.
第14题，共25题
At a T-intersection with no signs or signals, who has the right-of-way?
- The vehicle turning left
- Traffic on the through road
- The largest vehicle
- Traffic on the road that ends
显示答案
答案: B. Traffic on the through road
Drivers on the road that continues straight through have the right-of-way. Drivers on the road that ends must yield.
第15题，共25题
This yellow plate is posted under a curve sign. What does it tell you?
- The legal speed limit for the whole road is 35 mph
- Only trucks must slow to 35 mph
- The minimum speed is 35 mph
- The recommended speed for the curve is 35 mph
显示答案
答案: D. The recommended speed for the curve is 35 mph
Yellow speed plates give an advisory speed for a curve or hazard in good conditions. Drive slower if the road is wet or icy.
第16题，共25题
You park facing downhill next to a curb. Which way should you turn your front wheels?
- Toward the curb
- Away from the curb
- It does not matter if the parking brake is set
- Straight ahead
显示答案
答案: A. Toward the curb
When parking downhill, turn your wheels into the curb so the car rolls into it, not into the street.
第17题，共25题
What is hydroplaning?
- When a tire slowly loses air
- When water gets into your engine
- When your tires ride on a layer of water and lose contact with the road
- When your brakes overheat on a long hill
显示答案
答案: C. When your tires ride on a layer of water and lose contact with the road
At higher speeds on wet roads, tires can ride up on water. You then lose steering and braking control.
第18题，共25题
A flagger in a work zone holds up a STOP paddle. What must you do?
- Stop and wait until the flagger signals you to go
- Stop only if workers are in your lane
- Honk and keep going
- Slow down and drive around the flagger
显示答案
答案: A. Stop and wait until the flagger signals you to go
Work zone flaggers are allowed to direct traffic. Their signals must be obeyed like a traffic officer's.
第19题，共25题
Your brake pedal suddenly sinks to the floor. What should you try first?
- Turn off the engine
- Shift into park
- Open the door to drag your foot
- Pump the brake pedal to build up pressure
显示答案
答案: D. Pump the brake pedal to build up pressure
Pumping the pedal may build enough pressure to stop. If that fails, use the parking brake slowly and shift to a lower gear.
第20题，共25题
What does it mean to overdrive your headlights?
- Driving with only parking lights on
- Driving so fast that you cannot stop within the distance your headlights show
- Using high beams near other cars
- Driving with one headlight out
显示答案
答案: B. Driving so fast that you cannot stop within the distance your headlights show
At night, drive at a speed that lets you stop within the area your headlights light up.
第21题，共25题
You cannot see the truck driver's face in the truck's side mirror. What does that mean?
- You are a safe distance away
- The truck is about to stop
- The truck driver probably cannot see you
- The truck driver can see you clearly
显示答案
答案: C. The truck driver probably cannot see you
If you can't see the driver in the truck's side mirror, assume the driver can't see you.
第22题，共25题
What does implied consent mean?
- Police may search your home at any time
- You may refuse a chemical test with no penalty
- By driving, you have agreed to a chemical test for alcohol or drugs if lawfully asked by police
- Your passengers must also be tested
显示答案
答案: C. By driving, you have agreed to a chemical test for alcohol or drugs if lawfully asked by police
Under implied consent laws, getting a license and driving means you agree to be tested when an officer lawfully asks.
第23题，共25题
What does this sign mean?
- Traffic from another road will join your lane; be ready to let it in
- Two lanes become three
- Your lane ends and you must exit
- A divided highway begins
显示答案
答案: A. Traffic from another road will join your lane; be ready to let it in
Traffic is merging from the side shown. Adjust your speed, or change lanes if it is safe, so vehicles can merge smoothly.
第24题，共25题
What does this sign mean?
- Hospital staff parking
- A wheelchair crossing is ahead
- Loading zone
- Parking only for vehicles with a valid disability placard or license plate
显示答案
答案: D. Parking only for vehicles with a valid disability placard or license plate
Do not park in these spaces unless your vehicle displays a valid disability placard or plate. You can be fined.
第25题，共25题
Which of these is distracted driving?
- Scanning the road ahead
- Eating or changing the music while driving
- Keeping both hands on the wheel
- Checking your mirrors
显示答案
答案: B. Eating or changing the music while driving
Any activity that takes your attention from driving is a distraction, including eating, talking and adjusting the stereo or GPS.

相关测试