South Carolina CAR DMV Practice Test 18

Crashes often happen when some drivers go faster or slower than other vehicles on the road. Always try to drive with the flow of traffic, within the posted speed limit.

This sign indicates that there is an intersection ahead. A road joins from the right.

When passing, you must always signal at least 100 feet in advance of your lane change. Always check behind you in your mirrors and look over your shoulder to check your blind spot. Wait until you can see both headlights of the passed car in your rearview mirror before returning to your original lane.

Stop before the stop line or crosswalk at any intersection that is controlled by a stop sign. If there is a stop sign but no stop line or crosswalk, stop before entering the intersection and proceed when it is safe to do so.

If you approach an emergency vehicle, tow truck, or roadside assistance vehicle that is stopped with its lights flashing, you must change lanes to allow the vehicle extra space. If there is only one lane moving in your direction, or if changing lanes would be unsafe, you must slow down to a speed below the posted speed limit and give the stationary vehicle as much room as possible. Always slow down and be prepared to stop when you approach an emergency scene.

A flashing yellow light at an intersection means "caution." If you approach such a light, slow down, look, and proceed with care.

Special child seats are available for children who are too small to wear regular safety belts. No person is strong enough to safely hold onto a child of any size during an accident or sudden stop. Never allow a child to ride in a vehicle unless they are properly fastened into a seat.

Because large vehicles have large blind spots on both sides, you should avoid driving beside a large vehicle for a long period of time. It is safest for you to either drop back or move forward when you find yourself directly next to a large vehicle.

This sign prohibits right turns. You cannot make a right turn at an intersection where this sign is posted.

A double solid yellow line means that it is prohibited for vehicles traveling in either direction to cross the centerline to pass.

A solid red arrow in a traffic signal means the same thing as a circular red traffic light. When an arrow is red, traffic in the indicated lane must stop and may not turn in the direction that the arrow is pointing.

When driving in fog, you should slow down and use your low beam headlights. If the fog is so bad that you cannot see, pull off the road and wait for the fog to clear.

When broken yellow lines separate the lanes of traffic on a two-lane roadway, any driver may pass when there is no oncoming traffic.

A five-sided sign indicates that you are near a school. Be aware and stop if children are in the crosswalk.

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns that you are leaving a separated one-way highway and will soon be driving on a two-way highway.

When parking either uphill or downhill on a road that has no curb, you should turn your wheels so that the vehicle will roll away from the center of the road if the brakes fail.

The speed at which you should drive your vehicle depends on road conditions, the weather, and the legal speed limit. You may never drive above the legal speed limit. Decrease your speed when anything makes conditions less than ideal.

When a vehicle makes a turn, the rear wheels follow a shorter path than the front wheels. The longer the vehicle, the bigger the difference between the paths of the front and rear wheels. Therefore, long trucks often have to swing wide to complete a right turn.

Before changing lanes, you should check your side mirrors and look over your shoulder to make sure it is safe to proceed.

A flashing yellow light at an intersection indicates that drivers should slow to a safe and reasonable speed and proceed with caution.

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns drivers about the presence of traffic signals at an intersection ahead.

Many medications can produce side effects that may impair your driving skills. If you are taking any medications, be aware of their side effects and do not drive if they interfere with your ability to drive.

If there are two railroad tracks next to each other, watch for a second approaching train after one train passes. Do not begin to cross the tracks until you’re sure no train is approaching from either direction on either track.

When parking on an incline where there is a curb, you should turn your wheels sharply to the left, away from the curb. This way, if your brakes fail, your vehicle will not roll into traffic.

Alcohol is a depressant that dulls your judgment and makes your reflexes unreliable.

Bicyclists have the same rights and responsibilities as automobile drivers when using streets and highways. They are part of the normal traffic flow and are entitled to share the road with other drivers.

Your turn signals should always be used when you make any movement to the left or right. You should use your signal when pulling into traffic from a curbside parking space, moving into a new lane, or passing another vehicle.

Warning signs are usually diamond-shaped with black markings on a yellow background. They alert drivers to upcoming hazards. This sign warns drivers that the right lane is ending or that the road is narrowing ahead.

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

This sign indicates that there is a Y intersection ahead. You must bear either to the right or to the left.