South Carolina CAR DMV Practice Test 12

You must come to a complete stop at a steady or flashing red traffic light. You must always obey instructions given by officers directing traffic, regardless of any posted signs or traffic signals.

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

On a multilane highway, slower traffic should travel in the right lane. Use the left lane to pass slower-moving traffic.

Before changing lanes, check your side and rearview mirrors for traffic approaching you from behind. Just before you begin moving into the other lane, quickly glance over your shoulder and check for any vehicles that may be in your blind spot.

Drivers should always be willing to give a pedestrian the right-of-way, regardless of whether or not they are legally entitled to it. Always yield the right-of-way to pedestrians, motor vehicles, bicyclists, or anyone else who has moved into an intersection before you.

It is prohibited to stop, stand, or park on a railroad track. You should never cross railroad tracks unless there is room for your entire vehicle on the other side of tracks.

Warning signs provide notice to road users of a situation that might not be readily apparent and are usually yellow with black markings. This sign warns drivers of an upcoming intersection so they may prepare for potential traffic or prepare to turn.

It is estimated that drivers make 200 decisions for every mile traveled, making it vital that drivers focus their full attention on the task of driving. Performing any additional task can create a dangerous distraction.

Hydroplaning occurs when there is standing water on a roadway. At speeds up to 35 mph, most tires will channel water away from the tire. As your speed increases past 35 mph, tires cannot channel the water as well and your tires may start to lose contact with the road and ride over the water like a set of water skis.

A steady green light means you may drive through the intersection if the road is clear. You may also turn right or left on a steady green light unless a sign prohibits the turn. When turning, you must yield to other vehicles and pedestrians within the intersection.

There are a number of locations where parking is prohibited. These locations include on a sidewalk, within 15 feet of a fire hydrant, and in front of a driveway (or near enough to a driveway to interfere with others' abilities to use it).

When changing lanes, you must be sure that there are no vehicles in the space you want to enter. Check for other vehicles behind and to the side of your vehicle by checking your mirrors and blind spots. Always use the proper turn signal before changing lanes to allow surrounding vehicles time to react to your movements.

Decrease your speed as you approach an intersection with a yield sign. Prepare to stop and yield the right-of-way to vehicles and pedestrians in the intersection or crossroad. You must come to a full stop at a yield sign if traffic conditions require it.

While driving, you should remain aware of the actions of surrounding drivers. If you notice an aggressive driver nearby making erratic or improper lane changes, you should not challenge them. The safest way to handle an aggressive driver is to get out of their way.

To keep your vehicle from rolling into traffic when parked facing uphill, turn your front wheels sharply away from the curb. If you are parking uphill on a street that has no curb, turn the wheels sharply toward the edge of the road.

Your horn should be used to warn other drivers or pedestrians in situations where they may not see you. For example, if you think another driver is about to hit you, you should sound your horn.

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.

A flashing yellow traffic light means drivers should slow down and proceed with caution.

Large vehicles require longer distances to stop and accelerate than smaller vehicles do. Making a sudden stop in front of a large vehicle is dangerous because the other driver may not be able to stop in time to avoid a collision.

Signal, check your mirrors, and check your blind spot before changing lanes or passing on an interstate. Only stop on the shoulder of the interstate in the case of an emergency and change lanes as infrequently as possible. Cruise control should not be used in heavy traffic or under poor weather conditions.

Warning signs, which tell you about conditions on or near the road ahead, are usually diamond-shaped with black symbols or words on a yellow background.

A solid line along the side of the road indicates where its edge is, marking the boundary between the travel lane and the shoulder. If the edge line angles toward the center of the road, this means that the road is narrower ahead.

When there is more than one potential hazard on the road, you should ensure that you only have to deal with one of them at a time. For example, when there is a bicyclist on the right that you want to pass and an oncoming car to the left, you should not try to squeeze between both at the same time. Instead, let the oncoming car pass, and then pass the bicyclist.

Warning signs prepare drivers for upcoming road conditions and hazards and are usually yellow with black markings. This sign warns drivers that they are approaching a winding road and that they should adjust their speed accordingly.

Set your parking brake when making an emergency roadside stop. Turn on your emergency flashers to alert other drivers to your presence.

If a road has four or more lanes with two-way traffic, drive in the right lanes unless you are passing or turning left. If you are on an interstate highway and are driving below the speed of the flow of traffic, use the right lane.

At a stop sign, you must come to a complete stop at the stop line, if there is one. If there is no stop line, you must make a complete stop before entering the crosswalk. If there is no crosswalk, you must stop before entering the intersection.

When approaching a yield sign, drivers must give the right-of-way to traffic already in the lanes that they intend to enter or cross. Drivers should be prepared to stop when approaching a yield sign but may continue without stopping if there is no conflicting traffic.

Warning signs that indicate approaching hazards are usually yellow with black lettering or symbols. Warning signs in work zones are orange with black lettering or symbols.

Drivers should be alert to the presence of crossing guards when near a school and must always obey their instructions.