Oklahoma CAR DMV Practice Test 20

You may not be able to drive well if you are worried, excited, crying, angry, or depressed. Emotions can distract you from your driving because your mind is focused on something else. Take time to calm down and get focused before driving.

Many crashes are caused by drivers who are driving too fast for conditions. Always drive within the legal speed limits and decrease your speed any time conditions are less than perfect.

Consuming any type of alcohol can have negative effects on your reflexes and judgment. It does not matter which type of alcohol is consumed, only how much alcohol has entered a person's bloodstream.

Warning signs prepare drivers for upcoming road conditions and hazards and are usually yellow with black markings. This sign tells drivers to be aware of potential traffic entering from an upcoming side road.

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.

Reducing your speed should be your first response to decreased visibility and dangerous road conditions.

A regulatory sign displaying a red circle with a red slash through the middle indicates that a specific action is prohibited. U-turns are not permitted where this sign is posted.

If you become stranded in a snowstorm, the best thing to do is stay in your car and wait for help. You are most likely to be found if you don't leave your vehicle. Additionally, it may be unsafe to walk around outside in a snowstorm.

Construction, maintenance, and emergency operations signs are generally orange with black symbols.

School buses and tank trucks carrying flammable liquids must stop at all railroad crossings. Be prepared to stop at railroad crossings when following one of these vehicles.

This sign indicates that there is a traffic signal at the intersection ahead.

Situations where motorists are required to stop include approaching intersections with stop signs, approaching intersections where a red light is either flashing or illuminated, or any time when a traffic officer orders your vehicle to stop.

As a general rule, broken traffic lines may be crossed but solid lines may not. Solid yellow lines may be crossed only when the driver is making a turn.

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.

A triangular red and white yield sign means that you must decrease speed as you approach an intersection and yield the right-of-way to any vehicles or pedestrians in the intersection. You must be prepared to stop if conditions require it.

Make room for vehicles entering the freeway. Whenever possible, change lanes to allow those entering to do so smoothly and safely.

Night driving creates a unique set of problems for drivers. Due to the reduced visibility, it can be difficult to judge distance and the traveling speeds of other vehicles when driving at night. Drivers can see only as far as their headlights allow.

When driving on wet roads, drivers should increase their following distance.

Lane control signals are used when the direction of the flow of traffic in a specific lane changes throughout the day. They are used to show which lanes of traffic are open and closed, as well as to show if toll booths are open or closed. When a lane control signal contains a green arrow, drivers may drive normally in the indicated lane.

At a four-way stop, you must yield the right-of-way to drivers who arrived before you. Wait your turn to enter the intersection.