South Dakota CAR DMV Practice Test 20

Even if the signal is green, you must not enter an intersection unless you can get completely across before the light turns red. If you block the intersection, you can be cited.

This sign warns of a dangerous downgrade or hill ahead. The hill may be very long or steep, or it may have sharp curves.

You must yield the right-of-way to any emergency vehicle that is using its siren and lights. Drive to the right edge of the road and stop until the emergency vehicle has passed. If you are within an intersection, drive through the intersection first and then stop.

This sign informs drivers that they are leaving a divided roadway and approaching a two-way highway.

While airbags provide supplemental protection for adults in the event of a crash, they pose a severe safety risk for children. Anyone age 12 or under should sit in the back seat of a vehicle with airbags.

Even if your light is green, you must not enter an intersection unless you can get completely through the intersection before the light turns red. If you block the intersection, you can be cited.

This sign indicates that U-turns are prohibited.

Treat a flashing red traffic signal the same as you would treat a stop sign. Come to a complete stop, yield to oncoming traffic or pedestrians, and proceed when the way is clear.

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign is used to warn drivers about an upcoming curve to the right.

If you must stop on the shoulder of the interstate or highway, turn on your emergency flashers to warn other drivers and stay inside your vehicle, if you can. The extremely high speed of traffic makes standing or walking along an interstate highway very dangerous.

Drivers of trucks, buses, vans, or any vehicles pulling campers or trailers may not be able to see you if you are driving directly behind them. Increase your following distance when driving behind one of these vehicles. Additionally, large vehicles can block your view of the road, so increase your following distance to look around the sides of the vehicle and see the road ahead.

Motorcycles can be easily hidden in a vehicle’s blind spot or missed in a quick look due to their small size. Drivers of cars must always be alert and looking for motorcycles, mopeds, and scooters.

High beam headlights let you see twice as far as low beam headlights. It is important to use high beams on unfamiliar roads, in construction areas, or where there may be people along the side of the road. Only use high beams if other vehicles are not nearby.

When driving near a blind pedestrian, using your horn may be dangerous. Yield to the pedestrian and proceed when it is safe to do so.

After coming to a full stop, vehicles should proceed through a four-way stop in the order in which they arrive to the intersection. If multiple vehicles arrive at the same time, the vehicle on the left must yield the right-of-way to the vehicle on the right.

On the freeway, be ready for changes in traffic conditions. Watch for signals from other drivers. Expect merging vehicles at on-ramps and interchanges and be prepared for rapid changes in road conditions and traffic flow.

Driving at night is more hazardous than daytime driving because the lowered visibility makes it difficult to judge speed, distances, and other potential hazards. Increase your following distance to help prevent a potential collision if the vehicle in front of you should stop abruptly. Use your headlights when driving at night, following the rules for proper usage of high beams and low beams.

Avoid "rubbernecking," or slowing down to look at collisions or anything else out-of-the-ordinary. This helps to relieve traffic congestion.

If the headlights of an oncoming vehicle are blinding, glance toward the right edge of the road instead of looking directly ahead. This should keep your vehicle safely on the road until you pass the oncoming vehicle.

A driver must yield the right-of-way to a pedestrian within a crosswalk. The driver should wait until the intersection is clear to proceed.

This sign indicates that a divided highway begins ahead. Keep to the right of the median divider.

Yellow lane markings indicate a separation of lanes where traffic is traveling in opposite directions. When you see double solid yellow lane markings, passing is prohibited from both directions.

If you begin to skid on a wet or icy road, take your foot off the accelerator, stay off the brakes, and turn your steering wheel in the direction of the skid. However, if you have anti-lock brakes, you should apply your brakes firmly and steer straight ahead.

To avoid being blinded when driving at night, do not look directly at the headlights of oncoming cars. Instead, look toward the right edge of the road until the oncoming driver has passed.

Drivers making a left turn must yield to all vehicles approaching from the opposite direction. This includes bicycles and motorcycles.