South Dakota CAR DMV Practice Test 21

A wet, slippery road does not allow your tires the traction they need, so it is necessary to drive more slowly on a wet road than you would on a dry road. To reduce the risk of skidding, you should avoid fast turns or stops.

Your emotions affect your ability to drive safely. If you are overly angry, excited, afraid, worried, or depressed, you should give yourself time to calm down before operating a vehicle. You need to be able to mentally focus on driving without thinking about the things that made you upset.

A broken yellow centerline next to your side of the road indicates that traffic may cross the centerline to pass from your side of the road.

As you enter a work zone, signs and message boards will warn you of workers, slow-moving equipment, and/or closed lanes ahead. You should reduce your speed and be prepared to slow down or stop.

When turning, you should look to the rear and both sides of your vehicle to ensure it is safe to proceed before making the turn. Adjust your speed to safely complete the turn.

Both hands should be placed on opposite sides of the steering wheel. This position is comfortable and promotes safe turning on high-speed roadways.

If you see an emergency vehicle approaching while using its flashing lights, pull over to the right edge of the road and stop. Position yourself parallel to the curb. On one-way streets, drive toward the road edge nearest you.

Drivers must always yield the right-of-way to pedestrians in the roadway, even if there is not a marked crosswalk.

A steady green traffic light indicates that the driver may continue through the intersection. The driver should yield to traffic or pedestrians already in the intersection and proceed when the intersection is clear.

A downward-facing triangular sign is always a yield sign. Drivers must be prepared to slow down or stop when approaching a yield sign.

If multiple vehicles arrive at the same time to an intersection that is not controlled by signs or signals, the driver on the right has the right-of-way. Drivers should then proceed in the order that they arrive to the intersection.

Drivers must obey any instructions given by a police officer, even if the instructions contradict laws, signs, signals, or markings that would otherwise apply.

When being tailgated, create extra space in front of your vehicle and do not brake suddenly. Slow down gradually or merge into another lane to prevent a collision with the tailgater.

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign tells drivers to prepare to allow traffic to safely merge from the right.

Safe use of the interstate demands drivers be constantly alert and capable of driving at high speeds.

If your vehicle begins to skid, do not use the brakes. Braking could make the skid worse.

Drivers crossing a sidewalk when entering or exiting a driveway, alley, or parking lot must yield to pedestrians. It is illegal to drive on a sidewalk except to cross it.

Pentagonal signs indicate that you are in or are approaching a school zone and/or school crossing. Be aware of children when driving near a school zone and follow posted speed limits.

When parking facing downhill on a road with or without a curb, or when facing uphill on a road without a curb, turn your front wheels toward the edge of the road so your vehicle will roll away from traffic if the brakes fail. However, when parking uphill on a road with a curb, turn your wheels toward the center of the road so the vehicle will roll into the curb if the brakes fail.

If you experience a tire blowout, you should slow down gradually by taking your foot off of the accelerator. Don't apply the brakes until the vehicle has slowed considerably.

A triangular red and white sign indicates that you must yield the right-of-way.

A flashing red traffic light means the same thing as a stop sign. You must come to a complete stop, yield to other traffic and pedestrians, and then proceed when it safe to do so.

When parking on a hill, you should always leave your vehicle in gear or in the "park" position. If there is no curb, you should turn your front wheels so that the vehicle will roll away from the center of the road if the brakes fail. If there is a curb, the front wheels should be turned toward it (if headed downhill) or away from and gently touching it (if headed uphill).

It can be hard to judge the speed of oncoming vehicles. They do not always seem to be coming as fast as they really are. Always be sure you can safely change lanes when passing on a two-lane street. If you are not sure of an oncoming vehicle's speed, wait to pass until the oncoming vehicle has passed and you are sure there is enough space for you to change lanes safely.

A broken yellow line in the center of the road indicates that traffic next to the broken yellow line may pass, if it is safe to do so.