Louisiana CAR DMV Practice Test 23

Headrests protect vehicle occupants from whiplash. Adjusting your headrest is an important step to take before driving.

Speed limit signs indicate the maximum or minimum safe speed that is allowed to be driven on a roadway. The maximum limits are for ideal conditions and you must reduce your speed when conditions require it.

Don’t make a last-minute turn into an exit. If you pass your exit, you must go to the next one.

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.

The only method that effectively reduces your BAC is to not drink alcohol for a period of time. Coffee, exercise, and cold showers cannot reduce your BAC or change the effects of alcohol. They can help you remain awake, but they cannot change your BAC or make you sober.

There are situations when you need more space in front of your vehicle than usual. Increase your following distance to at least four seconds when driving conditions are not ideal.

When driving on a two-lane roadway or undivided highway, you must yield to an emergency vehicle using its lights and/or siren, regardless of the direction from which it is approaching. Immediately drive as near as possible to the right side of the road and stop, taking care not to stop within an intersection.

When other drivers are behaving angrily, you should take action to physically and mentally distance yourself from the situation. Avoid making eye contact with them, or making body movements or gestures that could provoke them. Slow down, move over, or do whatever you safely can to put yourself out of danger.

Even the most experienced drivers can be distracted while driving. A defensive driver looks out for the actions of other drivers and anticipates potential problems.

Motorcycles are entitled to the width of a full lane. Be sure your vehicle is entirely in the left lane before attempting to pass a motorcycle on the left.

You should always reduce your speed and use extra caution when children are in the vicinity. They may fail to understand the danger and may run out in front of you without looking.

An eight-sided sign always means "stop." You must come to a complete stop and wait for any vehicles or pedestrians to clear the way before proceeding.

Painted curbs indicate parking restrictions. When a curb is painted red, it indicates fire zone parking restrictions.

This sign means that it is not safe for drivers to enter the indicated road or driveway from their current direction. If you come across one of these signs, you should immediately turn around and drive a different way.

Reduce your speed when roads are snow-covered or icy. Doing this and increasing your following distance are the most important techniques for avoiding crashes under snowy or icy conditions.

Fluorescent pink is used as the background color for incident management signs. These signs are temporarily placed and indicate a nonpermanent issue, such as a road closure due to a crash. Drivers should react accordingly when coming across one of these signs.

When the driver behind you wants to pass, you should slow down so that there is enough room in front of your vehicle for the other driver to complete their pass. This will allow them to complete the passing maneuver in less time and more easily.

This sign indicates the presence of a pedestrian crossing. Drivers should be cautious when driving where pedestrians may be present.

White lines are used to separate traffic moving in the same direction. Dashed lines indicate that drivers directly next to the line are permitted to pass when it is safe to do so.

When driving an unfamiliar vehicle, take a few minutes before driving to familiarize yourself with the location and operation of the turn signals, hazard warning signals, headlights and beam selector, windshield wipers and washers, brakes, gear selector, and horn. Any defects should be corrected before the vehicle is driven.

Warning signs prepare drivers for upcoming road conditions and hazards and are usually yellow with black markings. This sign tells drivers to be cautious when driving under conditions that may cause the roadway to become wet and slippery.

Some regulatory signs prohibit certain actions. These signs are rectangular and white with red and black markings. A red circle and slash on top of a black symbol indicates that the specified action is forbidden.

You should increase your following distance when you are behind a large vehicle that blocks your vision, when driving in bad weather or heavy traffic, when exiting an expressway, when behind a motorcycle or bicycle, and if someone is tailgating you.

If another vehicle is approaching you head-on in your lane, you should first honk your horn to attract attention. If the other driver does not move over, try to escape to the right. If you swerve left and the other driver corrects at the last instant, you will still crash. If a collision is unavoidable, brake firmly and steadily. Every mile per hour you slow down will reduce the impact.

These signs indicate that the road curves to the right ahead and that drivers should slow down to the safe speed indicated (in this case, 35 mph).

A wide variety of intoxicants can impair your ability to drive. These include all types of alcoholic beverages, illegal drugs, inhalants, and many legal medications (both prescription and over-the-counter).

Accelerate gradually and smoothly with the top of your foot on the gas pedal and the heel of your foot on the floor. Depressing the gas pedal too quickly can cause the wheels to overspin or cause your vehicle to slide, especially if the pavement is wet.

Drivers who do not follow the rules of the road are a hazard to all motorists, bicyclists, and pedestrians on the roadway. To maintain control of your driving, you should plan for plenty of time to complete a trip. If you begin your drive early, you won't feel the need to break traffic rules to get to where you are going on time.

You must pull over to the right edge of the road and stop for an emergency vehicle with flashing lights, regardless of whether it is approaching you from behind or from the opposite direction.

Good defensive drivers have the skills to operate a vehicle safely through traffic without endangering anyone else on the road. A defensive driver is aware of the blind spots of the vehicle in front of them. A good defensive driver will scan the road ahead, avoid being distracted, and maintain road discipline.

This sign indicates that there is a sharp right turn ahead.

Wearing your seat belt is the smartest move you can make to prevent injury or death in the case of a collision. Your chances of being killed are 25 times greater if you’re thrown from the car in a crash.

To avoid becoming fatigued while taking a long trip, stop every two hours for a short break. If you become drowsy, pull off the road and park in a safe place to take a nap, or find a room to stay for the night.

When you back up a vehicle, look through your back window for pedestrians and other obstacles. Do not rely only on your mirrors, especially when children are near. Before you back into or out of a driveway, get out of the vehicle and check behind your vehicle.

When intending to back up, always check behind your vehicle before getting in. Children and small objects are difficult to see from the driver’s seat. While backing, turn your head so you can see through the rear window. Do not depend only on your mirrors or sensors.

This sign warns that especially slippery conditions exist when the road is wet.

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.

If nothing seems to help you stay awake, get off the highway and take a short nap. Driving drowsy is dangerous for you and the drivers around you.

This sign warns that deer cross the roadway in the area. You should slow down, be alert, and be ready to stop.

If you are in a lane that requires you to turn, other drivers will not expect you to suddenly change lanes or stop. You should always turn if you are in a turn lane. Circle around the block to return to the initial road, if you need to do so.