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Sample SD Driver's Test 2021

(From the 2021 South Dakota driver handbook)

Number of tests:	24
Number of questions:	25
Passing score:	20

Directions: You will be given a knowledge test to determine how well you know South Dakota traffic laws and safe driving practices. Getting a driver's license in SD becomes possible in case you have successfully passed the DMV SD driving test. Practice online with our sample DMV tests and get the highest exam results.

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Passing grade —

5 or fewer errors

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1.

A broken yellow centerline means that:

Passing is not permitted.
Passing on the right is permitted when the way ahead is clear.
Passing on the left is permitted when the way ahead is clear.

Explanation ▾

A broken yellow centerline means that a driver may cross the centerline to pass another vehicle on the left as long as there is no oncoming traffic. Drivers should never cross a solid yellow centerline in order to pass.

2.

If the roadway is wet or icy, you should:

Reduce your speed.
Drive at the posted speed.
Speed up.

Explanation ▾

Because your tires will not grip the road under wet, snowy, or icy conditions as well as they will under dry conditions, you should slow down if the roadway is wet or icy.

3.

As the percentage of alcohol (BAC) in your blood increases, you become:

More intoxicated.
More sober.
More coordinated.

Explanation ▾

Blood alcohol concentration (BAC) is a measure of the percentage of alcohol in a person's blood. The higher the BAC, the more impaired a person is.

4.

This sign means:

Watch for bicycles.
Bicycles not allowed.
Bicycle repair shop ahead.

Explanation ▾

Warning signs are usually yellow with black markings. Warning signs may alert drivers to areas where animals, people, and vehicles are likely to cross traffic.

5.

If you park facing uphill where there is no curb, set the parking brake and:

Turn your wheels toward the edge of the road.
Turn your wheels away from the edge of the road.
Keep your wheels facing straight.

Explanation ▾

When parking uphill on a road that does not have a curb, your front wheels should be turned to the right (toward the edge of the road). This will ensure that the vehicle will roll off of the road if the brakes fail.

6.

When driving in fog, rain, or snow, use:

Low beams.
High beams.
Fog lights only.

Explanation ▾

Low beam headlights should be used in fog, rain, and snow. The light from high beams will reflect back to the driver under these weather conditions, causing a glare that will make it difficult to see ahead.

7.

This sign is a:

Service sign.
Regulatory sign.
Warning sign.

Explanation ▾

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. There may be an upcoming change in traffic direction, a steep downgrade, or another potentially hazardous situation that requires action on the part of the driver.

8.

When merging onto the freeway, you should be driving:

At or near the speed of the freeway traffic.
At the legal speed limit.
More slowly than the freeway traffic.

Explanation ▾

You should enter a freeway at or near the speed of traffic, unless the speed of traffic exceeds the legal speed limit.

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