Oregon CAR DMV Practice Test 18

When you hear the siren or see the flashing lights of an emergency vehicle coming from behind your vehicle, you must create a clear path for the emergency vehicle and stop. Reduce your speed and safely pull over to the side of the road. If the emergency vehicle is directly behind your vehicle when you are in heavy traffic, keep moving slowly until you can get out of its way.

This sign marks parking spaces that are reserved for people with disabled parking permits.

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

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.

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.

This sign indicates that right turns are prohibited.

A solid yellow arrow has the same meaning as a yellow traffic light. When approaching a solid yellow arrow, you must reduce your speed and prepare for a red light.

You must yield to any transit vehicle that is signaling to pull back onto the main roadway after it has stopped to load or unload passengers. Change lanes, slow down, or stop to allow the bus safe re-entry into traffic.

This sign indicates that there is a flagger ahead controlling traffic in a construction area.

In rainy conditions, you should use your low beam headlights.

A flashing yellow traffic light at an intersection indicates that drivers must slow down, proceed with caution, and be prepared to stop.

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.

Yield to pedestrians and cars that may be caught in an intersection when you have a green light. Be careful around pedestrians under every circumstance.

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.

Work zone signs are orange and indicate that some type of work is being performed on or alongside the roadway. Be extremely careful when you see these signs.

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

Roads are likely to be most slippery when they are icy and the temperature is at the freezing point.

When changing lanes, you should check your vehicle's blind spots by looking over your shoulder in the direction that you want to move. Always check your mirrors and turn on your directional signal before beginning a lane change.

This sign indicates that the road ahead turns sharply to the right and then sharply to the left.

Highway markings provide information for drivers. Markings help drivers correctly position their vehicles on roadways, inform drivers of safe passing zones, and warn drivers about upcoming conditions.

If you must drive in foggy conditions, you should use your low beam headlights, as well as your fog lights, if your vehicle has them. High beams direct their light upwards, where it can bounce off the fog and into your eyes, reducing visibility even more.

You must yield to a stopped transit bus when the bus driver signals to re-enter a traffic lane and there is a flashing "Yield" sign on the back of the bus. Move over or slow down to allow the bus to safely merge back into moving traffic.

A steady yellow light indicates that a steady red light will soon appear. If you are driving toward an intersection and a yellow light appears, slow down and prepare to stop. If you are already within the intersection or cannot stop safely before entering the intersection, continue through carefully.

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.

A double solid yellow line down the center of a two-way road means that it is prohibited for traffic from either direction to cross the center to pass.

Drivers must be aware that large vehicles often travel at a speed slower than the posted speed limit, especially when driving on an incline, and should use caution when approaching a large vehicle from the rear. When on a hill with limited visibility, it is unlawful to pass another vehicle.

This sign indicates that a T intersection is ahead.

Warning signs prepare drivers for upcoming road conditions and hazards and are usually yellow with black markings. This sign alerts drivers to an upcoming curve in the road.

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.

Because it is dark, drivers cannot see as well at night as they can during the day. From one half hour after sunset until one half hour before sunrise, or at any other time when persons or vehicles are not visible for 500 feet, drivers must use their headlights.

Emotions can have a great effect on your driving ability. You may not be able to drive well if you are overly worried, excited, afraid, angry, or sad. Stress can lessen your concentration on the task of driving. It is better to wait to drive than to risk driving while you are emotionally unstable.

If a driver's left arm and hand are extended upward, they are indicating that they intend to turn right. Adjust your driving accordingly if following a driver who is using this hand signal.

Alcohol negatively affects many skills needed for safe driving, including your reaction time and ability to see clearly. It can also harm your judgment of speed and distance, lower your inhibitions, and make you more prone to taking chances.

Signs that are brown indicate areas of cultural and historical significance or of public recreation. They can be a helpful resource when traveling in unfamiliar locations.

Your blood alcohol content (BAC) depends on how much alcohol you drink, how much time passes between drinks, and your weight. It is not affected by the type of alcoholic beverages you drink, your level of physical fitness, or how well you can "hold your liquor."