South Dakota DPS Permit Practice Test 2026：第4套练习测试

South Dakota DPS Permit Practice Test 练习测试第4套（共8套）：再练25道题，附答案和解释。

驾驶
南达科他州
205道题
核对于2026年10月10日

第1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2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3题，共25题
A pedestrian with a white cane or a guide dog is waiting to cross. What should you do?
- Stop and let the person cross, without honking
- Wave the person across from far away
- Honk so the person knows you are there
- Drive around the person
显示答案
答案: A. Stop and let the person cross, without honking
Pedestrians who use white canes or guide dogs have the right-of-way. Do not honk at a blind pedestrian.
第4题，共25题
You see this emblem on the back of a vehicle. What does it mean?
- The vehicle moves much slower than normal traffic, like farm equipment
- The vehicle carries hazardous materials
- It is carrying a wide load
- It is an emergency vehicle
显示答案
答案: A. The vehicle moves much slower than normal traffic, like farm equipment
You can come up on these vehicles very quickly. Slow down early and pass only when it is safe and legal.
第5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6题，共25题
You hit a parked car and the owner is not around. What should you do?
- Ask a stranger to watch the car
- Wait one minute, then leave
- Try to find the owner, or leave your information and notify the police
- Drive away
显示答案
答案: C. Try to find the owner, or leave your information and notify the police
If you damage an unattended car or property, you must try to find the owner or report it to the police.
第7题，共25题
What is the center lane shown here used for?
- Driving for long distances in heavy traffic
- Left turns by drivers from both directions
- Passing slower vehicles
- Parking and loading
显示答案
答案: B. Left turns by drivers from both directions
A two-way left-turn lane is shared by drivers from both directions to make left turns. It is not a travel lane or passing lane.
第8题，共25题
On a freeway with two or more lanes going your way, what is the left lane mainly for?
- Stopping in an emergency
- Passing
- Slow vehicles
- Trucks only
显示答案
答案: B. Passing
Keep right except to pass. If many vehicles pass you on the right, move right and let them go by on the left.
第9题，共25题
What does this sign mean?
- Detour to the right
- Right turns only
- Traffic on this street moves only in the direction of the arrow
- Keep to the right of the divider
显示答案
答案: C. Traffic on this street moves only in the direction of the arrow
Drive only in the direction of the arrow. You may not drive the other way on a one-way street.
第10题，共25题
What does this sign mean?
- The center lane is only for left turns by traffic from both directions
- The center lane is a passing lane
- The left lane must turn left
- Two lanes may turn left
显示答案
答案: A. The center lane is only for left turns by traffic from both directions
Use the shared center lane only to slow down and turn left. Never use it to pass or to travel a long way.
第11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12题，共25题
What does the yellow diamond shape of this sign tell you?
- It marks a work zone
- It shows directions to a city
- It warns of a hazard or change in the road ahead
- It gives a rule you must obey
显示答案
答案: C. It warns of a hazard or change in the road ahead
Diamond-shaped signs are warning signs. Slow down and get ready for what the symbol shows.
第13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.
第14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15题，共25题
What does this sign mean?
- You may not turn while the light is red; wait for green
- No turns are allowed at any time
- There is a red-light camera ahead
- You may turn right on red after stopping
显示答案
答案: A. You may not turn while the light is red; wait for green
In most places you may turn right on red after a full stop. This sign takes that choice away, so wait for a green light.
第16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17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18题，共25题
What does this sign mean?
- Heavy vehicles must keep right
- The lane is closed
- Only vehicles with two or more people may use this lane
- Trucks only
显示答案
答案: C. Only vehicles with two or more people may use this lane
HOV means high-occupancy vehicle. 2+ means at least two people, counting the driver.
第19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20题，共25题
What does this sign mean?
- Turn right at the next road
- The divided highway ends
- Keep to the right of the island or obstacle ahead
- The right lane ends
显示答案
答案: C. Keep to the right of the island or obstacle ahead
Pass on the right side of the traffic island, median or obstacle shown on the sign.
第21题，共25题
What does this sign mean?
- Always come to a full stop
- The road narrows ahead
- Merge without slowing down
- Slow down and let traffic and pedestrians go first; stop if needed
显示答案
答案: D. Slow down and let traffic and pedestrians go first; stop if needed
A triangle pointing down means yield. Slow down, give the right-of-way, and stop only if you must.
第22题，共25题
In freezing weather, which part of the road often ices over first?
- Long straight roads in the sun
- Roads in the middle of town
- Bridges and overpasses
- Uphill sections facing the sun
显示答案
答案: C. Bridges and overpasses
Cold air flows above and below bridges and overpasses, so they freeze before other parts of the road.
第23题，共25题
When should you leave more than your normal following distance?
- Only when the road is dry and clear
- In bad weather or when following a large truck
- Only on city streets
- When you are in a hurry
显示答案
答案: B. In bad weather or when following a large truck
Add more space in rain, snow or fog, and behind large trucks that block your view.
第24题，共25题
At night, a car is coming toward you, as shown. When should you switch from high beams to low beams?
- Only if the other driver flashes the lights
- When it is within 50 feet
- When it is within 500 feet
- When it is within 2 miles
显示答案
答案: C. When it is within 500 feet
State laws generally require low beams within 500 feet of an oncoming vehicle, so you do not blind the other driver.
第25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.

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