SD DMV Written Test (2025) - FREE South Dakota DMV Practice Test

1. This road sign means:

Crossroad ahead
There is a detour ahead
The highway ahead is being repaired

2. When they see this sign, drivers should:

Increase their speed and keep well to the right.
Slow down and pass other vehicles before they reach the curve.
Slow down, and not pass other vehicles.

3. In heavy rain, tires can begin to ride on the water that is on top of the road pavement. This is called:

waterplaning.
rideplaning.
hydroplaning.

4. What is the only effective method to reduce your BAC?

Drinking coffee.
Not drinking over a period of time.
Eating before or while you drink.

5. When they see this road sign, drivers must:

come to a complete stop and call the police.
treat it as a Yield sign.
not drive past this sign.

6. When you see this sign you should:

slow your speed and be prepared to stop.
slow down and do not pass other vehicles.
increase your speed and try to pass other vehicles.

7. Aggressive driving behaviors can include:

a tendency to drive slow.
erratic lane changes.
excessive following distance.

8. When you make a left turn from a one-way road into a one-way road, if the road you enter has two lanes, you:

cannot turn left.
must turn into its right lane.
must turn into its left lane.

9. When entering an interstate highway, you should check for a gap in traffic in the nearest lane, adjust your speed to match the flow of traffic, signal and:

slow down gradually.
wait for the lane to be clear.
merge into that gap when safe.

10. Which sign has white letters on a red background?

School zone
Yield
Stop

Number of questions:	25
Correct answers to pass:	20
Passing score:	80%
Minimum age to apply:	14

SD DMV PRACTICE TEST

SD DMV Written Test Facts