South Dakota DPS Permit Practice Test 2026：第6套练习测试

South Dakota DPS Permit Practice Test 练习测试第6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
Which numbered marking separates lanes going in the same direction and allows lane changes when it is safe?
- Marking 5
- Marking 6
- Marking 2
- Marking 1
显示答案
答案: A. Marking 5
A broken white line (marking 5) separates lanes moving the same way. You may change lanes across it when safe.
第2题，共25题
You have parked on the street. What should you do before opening your door on the traffic side?
- Turn on your headlights
- Honk your horn
- Check behind you for bicyclists and cars
- Open the door quickly to get out fast
显示答案
答案: C. Check behind you for bicyclists and cars
Opening a door into the path of a bicyclist can cause a serious crash. Look back before you open it.
第3题，共25题
What does this sign mean?
- Many curves are ahead
- A sharp turn to the right is ahead
- Two-way traffic is ahead
- The road curves right, then left
显示答案
答案: D. The road curves right, then left
A reverse curve bends one way and then the other. Slow down before the first curve.
第4题，共25题
A train has just passed a crossing with more than one track. What should you do before you go?
- Drive around the gates as they start to rise
- Go as soon as the last train car passes
- Make sure no other train is coming on another track
- Follow the car ahead closely across the tracks
显示答案
答案: C. Make sure no other train is coming on another track
A second train can be hidden by the first one. Wait until the lights stop and you can see that all tracks are clear.
第5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6题，共25题
Which of these places is unsafe for passing on a two-lane road?
- A flat, open road in daylight with a clear view
- A straight road with a broken yellow line and no oncoming traffic
- A marked passing zone with good visibility
- Near the top of a hill or on a curve where you cannot see ahead
显示答案
答案: D. Near the top of a hill or on a curve where you cannot see ahead
Do not pass near hills or curves where you cannot see oncoming traffic, or near intersections and railroad crossings.
第7题，共25题
A common cause of serious motorcycle crashes is a driver who:
- Turns left in front of an oncoming motorcycle
- Parks next to a motorcycle
- Follows a motorcycle at a safe distance
- Passes a motorcycle on a straight road
显示答案
答案: A. Turns left in front of an oncoming motorcycle
Drivers turning left often fail to see oncoming motorcycles. Look carefully for motorcycles before you turn.
第8题，共25题
Your car breaks down on a highway. What should you do first?
- Turn on your hazard lights and pull as far off the road as you can
- Keep the lights off to save the battery
- Walk along the highway for help
- Stop in your lane and get out
显示答案
答案: A. Turn on your hazard lights and pull as far off the road as you can
Use your hazard flashers and get your car off the road if possible. Avoid stopping just over a hill or around a curve.
第9题，共25题
What do green signs like this one show?
- Rules you must obey
- Places to get gas and food
- Directions and distances to places
- Road work ahead
显示答案
答案: C. Directions and distances to places
Green guide signs show routes, directions and distances in miles.
第10题，共25题
A truck signaling a right turn swings left first. What should you do?
- Pass it on the right
- Pull up beside the cab
- Honk and pass it quickly
- Stay back and do not try to squeeze between the truck and the curb
显示答案
答案: D. Stay back and do not try to squeeze between the truck and the curb
Trucks swing wide to make right turns. Never try to get between a turning truck and the curb.
第11题，共25题
What does this sign mean?
- The bridge ahead is narrower than the road
- The bridge ahead is closed
- A drawbridge is ahead
- The road ends at a river
显示答案
答案: A. The bridge ahead is narrower than the road
There is less room on the bridge. Slow down, keep right and watch for oncoming traffic.
第12题，共25题
What does this sign mean?
- An Interstate highway
- A US highway (US route) number
- A county road
- An exit number
显示答案
答案: B. A US highway (US route) number
The black and white shield marks a numbered US route. These routes often cross several states.
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 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15题，共25题
Signs with this fluorescent yellow-green color are used for:
- Schools, pedestrians and bicycles
- Gas, food and lodging
- Road work zones
- Railroad crossings
显示答案
答案: A. Schools, pedestrians and bicycles
Fluorescent yellow-green is used for school, pedestrian and bicycle signs because it is easy to see.
第16题，共25题
What color are the signs that warn of road work ahead?
- Blue
- Brown
- Green
- Orange
显示答案
答案: D. Orange
Orange signs are used for work zones and other temporary traffic control. Slow down and watch for workers.
第17题，共25题
Your gas pedal sticks while you are driving. What should you do?
- Reach down with your hand while driving fast
- Pump the gas pedal hard
- Shift to neutral, brake, and pull off the road when it is safe
- Turn the key off right away
显示答案
答案: C. Shift to neutral, brake, and pull off the road when it is safe
Shifting to neutral cuts power to the wheels. Turning off the ignition could lock the steering.
第18题，共25题
What does keeping a space cushion around your car, as shown, give you?
- The right-of-way over other drivers
- A shorter braking distance
- Time and room to react if something goes wrong
- Better fuel economy
显示答案
答案: C. Time and room to react if something goes wrong
Space around your vehicle gives you time to see problems and room to steer or stop.
第19题，共25题
What should you do when you see this sign?
- Turn right only on a green light
- Do not turn right; go straight or turn left if allowed
- Yield to vehicles turning right
- Turn right after a full stop
显示答案
答案: B. Do not turn right; go straight or turn left if allowed
The black arrow shows the move and the red circle and slash forbid it. You may not turn right at this intersection.
第20题，共25题
What should you do when you see this sign?
- Speed up to cross the intersection
- Keep going straight
- Get ready to stop or turn; your road ends and you must turn left or right
- Make a U-turn
显示答案
答案: C. Get ready to stop or turn; your road ends and you must turn left or right
The T shape shows that your road ends at a cross street. Slow down and be ready to yield or stop before you turn.
第21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22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23题，共25题
The school bus ahead of you turns on flashing yellow (amber) lights. What does this mean?
- The bus is getting ready to stop, so slow down and prepare to stop
- The bus has broken down
- You should pass the bus quickly
- The children have finished crossing
显示答案
答案: A. The bus is getting ready to stop, so slow down and prepare to stop
Flashing yellow lights on a school bus warn that it will soon stop and turn on its red lights.
第24题，共25题
You see this sign facing you on a ramp. What should you do?
- Keep driving in the left lane with your hazard lights on
- You are going the wrong way: pull over safely, turn around and leave the way you came
- Speed up to get off the ramp quickly
- Keep going and take the next exit
显示答案
答案: B. You are going the wrong way: pull over safely, turn around and leave the way you came
WRONG WAY signs face drivers who are going against traffic. Stop safely, turn around and drive in the correct direction.
第25题，共25题
What does the red circle with a slash on this sign mean?
- The action shown inside it is not allowed
- The rule applies only at night
- There is danger ahead
- The action shown is allowed
显示答案
答案: A. The action shown inside it is not allowed
On US regulatory signs, red is used for STOP, YIELD and the circle and slash that ban an action.

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