Hardest Questions (South Dakota) (South Dakota) - 2026 DMV Practice Test

Question 1:

A broken white line:

means passing or crossing is prohibited in that lane.

separates two lanes traveling in the same direction.

marks the right edge of the roadway.

Question 2:

A flashing yellow light means:

The light will soon change from green to red.

Drive with caution.

Yield the right-of-way to other traffic at the intersection.

Question 3:

The road is the most slippery:

when it first starts to rain.

after it rains.

All of the above.

Question 4:

A four-way stop sign means:

traffic from all four directions must stop.

if two vehicles reach the intersection at the same time, the driver on the left yields to the driver on the right.

All of the above.

Question 5:

At a school crossing, drivers should:

always stop, whether there’s a stop sign or not.

always sound their horn and stay alert.

watch for children and be ready to stop.

Question 6:

After passing a vehicle, it is safe to return to your lane:

when you can no longer see the vehicle over your right shoulder.

after about five seconds.

when you see the front bumper of the other vehicle in your mirror.

Question 7:

A 4-way stop sign means:

The first vehicle to reach the intersection should move forward first.

Traffic from all four directions must stop.

There are four stop signs at the intersection.

All of the above.

Question 8:

Never make a U-turn from:

the lane you’re in.

the right lane.

the left part of the lane nearest to the centerline of the roadway.

Question 9:

This sign warns drivers that:

the highway ahead is divided into two one-way roadways. Drivers should keep to the right.

there is a winding road ahead.

there is a double curve ahead.

Question 10:

What should you do if your headlights suddenly go out?

Brake immediately and activate your emergency lights.

Use your emergency lights, parking lights or directional signals.

Ease your foot off the gas pedal and brake gently.

Question 11:

Before a school bus stops to load passengers, the driver will usually flash:

yellow warning lights.

red warning lights.

red lights.

Question 12:

When they see this sign, drivers should:

increase their speed and keep well to the right.

slow down and keep well to the right.

slow down and keep well to the left.

Question 13:

A diamond-shaped sign is a:

school zone sign.

warning sign.

regulatory sign.

Question 14:

A yellow arrow means:

Do not go in the direction of the arrow.

If you intend to turn in the direction of the arrow, be prepared to stop.

The same as a steady yellow light.

Question 15:

When you make a left turn from a one-way road into a two-way road, you must:

enter the two-way road to the left of its center line.

make a U-turn into the two-way road.

enter the two-way road to the right of its center line.

Question 16:

When driving on a roadway with a single broken white line:

you may cross the broken white line to change lanes.

you may change lanes only if you are in the right lane.

you may not cross the broken white line.

Question 17:

Left turns on a red light are allowed:

from a one-way street into a one-way street.

Never.

at intersections, after stopping, if the way is clear.

Question 18:

Most signs used in street work areas are:

round.

diamond shaped.

rectangle shaped.

Question 19:

This sign indicates:

A slow-moving vehicle

A no-passing zone

Yield

Question 20:

You can pass on the right:

when a vehicle ahead makes a right turn.

when a vehicle ahead makes a left turn.

when a vehicle that is approaching from the opposite direction is prepared to turn left.

Question 21:

Which sign has white letters on a red background?

Stop

School zone

Yield

Question 22:

When in a motor vehicle on a highway, it is:

illegal to drink from, but permissible to transport, open containers of alcohol in the passenger compartment.

illegal to possess an open container of alcohol in the passenger compartment.

acceptable to drink alcoholic beverages if you are not driving.

permissible to drink a moderate amount of alcohol when driving with a passenger.

Question 23:

Directions given by traffic officers ___________ signs, signals or pavement markings.

take precedence over

are less important than

must obey

Question 24:

On roadways, bicyclists are considered:

a distraction.

defensive drivers.

vehicles.

Question 25:

This road sign means:

Curves ahead

Divided highway ahead

Divided highway ends

Question 26:

Warning signs normally are:

rectangles.

triangles.

diamond-shaped.

Question 27:

What happens if two vehicles reach at the same time an intersection with four-way stop signs?

The driver on the right yields to the driver on the left.

The driver on the left yields to the driver on the right.

The first vehicle to reach the intersection must yield.

Question 28:

A driver who approaches an intersection:

must yield the right-of-way to traffic already in the intersection.

must drive straight through the intersection, even if another vehicle is already in the intersection.

has the right-of-way over traffic already in the intersection.

Question 29:

When you back up:

always look through the rear window.

you should rely only on your rearview mirror.

do it as fast as possible.

Question 30:

This is the shape and color of a ________ sign.

yield

stop

do not enter

Question 31:

A flashing red light:

is used at dangerous intersections.

means the same thing as a stop sign.

All of the above.

Question 32:

If you remain in the back blind spot of a large vehicle:

you increase the chance of a crash.

the large vehicle will take much longer to stop.

you can reduce fuel consumption.

Question 33:

When following another vehicle at night, drivers should use:

low beam headlights.

emergency flashers.

high beam headlights.

Question 34:

It's 10 AM. This sign tells you that:

you are allowed to park until 5:30 PM.

you must display a special permit in order to park here.

you are not allowed to park here.

Question 35:

Road signs that point out scenic areas and parks are:

brown and white.

black and orange.

green and white.

Question 36:

What does this road sign indicate?

Drivers have the right of way over bikes turning left.

Vehicles turning left must yield to bikes entering a right turn lane.

Motor vehicles entering an exclusive right-turn lane must weave across bicycle traffic in bicycle lanes.

Question 37:

The yield sign means:

Go. The light will soon be red.

If the way is clear, you may move forward slowly without stopping.

Stop if you can.

Question 38:

When driving in work zones, drivers should:

tailgate the vehicle ahead while reducing their speed.

pass the vehicle ahead when safe.

keep a safe following distance.

Question 39:

What should drivers do in case of a brake failure?

Shift to a lower gear.

Tie a white cloth on the left door handle.

Brake lightly.

Question 40:

This sign means:

You may make a U-turn.

Hairpin corner ahead.

You must make a U-turn.

Question 41:

Construction zone signs are generally:

rectangular with white red coloring.

triangular with black and yellow coloring.

diamond or rectangular with orange and black coloring.

Question 42:

Which of the following is NOT true about ABS?

It improves the vehicle stability.

It helps increase your stopping distance.

It improves the steering ability.

Question 43:

What is the meaning of blue traffic signs?

A blue background indicates a regulatory sign.

They give directional information.

Blue indicates road user services.

Question 44:

The ‘One Way’ sign means that:

only vehicles turning left may travel in the direction of the arrow.

there is only one road that turns left at the intersection.

drivers may travel only in the direction of the arrow.

Question 45:

Some roadway surfaces are more slippery during certain times or at certain places. Which of the following is more likely to be slippery on cold, wet days?

Roundabouts and traffic circles.

Roads in shady areas.

Asphalt rather than concrete roads.

Question 46:

If weather requires you to have your lights on, you should use your:

low beams.

parking lights.

high beams.

Question 47:

You must come to a full stop at a yield sign:

Always.

Never.

If traffic conditions require it.

Question 48:

A flashing red light at an intersection means:

Stop and yield the right of way.

You have the right-of-way.

Stop and wait for the green light

Question 49:

If your brakes are wet, you can dry them by:

riding the pedal lightly.

pull over to the right and wait until it stops raining.

having them checked by a mechanic.

Question 50:

When entering a freeway, you should check traffic by:

using both the inside and outside mirrors.

using the inside mirror.

using the side mirror and looking over your shoulder.

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