Idaho CAR DMV Practice Test 23

When you are approaching an emergency or police vehicle that is stopped on the right side of the road with its lights flashing, immediately reduce your speed and proceed with caution. If you are traveling on a road that has two or more lanes traveling in the same direction, you must merge into a lane that is not adjacent to the emergency vehicle, if it is safe to do so.

Before you drive, always fasten your seat belt and make sure all your passengers are using seat belts or child restraints. Studies have shown that if you use seat belts, your chances of being hurt or killed in a traffic crash are greatly reduced. Children age 12 and under should always ride properly restrained in a rear seat. Never put a rear-facing infant restraint in the front seat of a vehicle with a front passenger airbag.

Diamond-shaped signs warn drivers of existing or potential driving hazards. You will usually see these signs in yellow or orange.

You should slow down as you enter a curve and increase your speed gradually as you exit. Increasing your speed as you enter a curve will make it more difficult to control your vehicle.

When parking on a public road, you must park parallel to and within 18 inches of the curb or edge of the roadway. Your vehicle should be facing in the same direction as the traffic is moving on your side of the road.

White lines separate lanes of traffic that are moving in the same direction. Dashed white lines may be crossed to pass or change lanes, if it is safe to do so.

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

If there is an available passing lane, you may pass on the right of a vehicle or bicycle that is turning left or waiting to turn left. It is also legal to pass on the right when driving on a multilane road with two or more lanes traveling in the same direction. You may never drive off the pavement or main-traveled portion of the road to pass another vehicle.

Your chance of avoiding serious injury or death in an accident is increased if you are properly wearing your seat belt. Seat belts also help drivers maintain control of their vehicles when driving on winding or rough roads and when trying to avoid a collision.

Worn or bald tires can increase your stopping distance and make turning more difficult. Tires without adequate tread also increase the risk of hydroplaning.

Warning signs prepare drivers for upcoming road conditions and hazards and are usually yellow with black markings. This sign tells drivers that they are approaching an area with low clearance.

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).

Approximately one-half of all motorcycle crashes involve another motor vehicle. Always be aware of where motorcycles are in relation to your vehicle, especially under poor weather conditions and when you are changing lanes and turning.

To prevent hydroplaning, you should ensure that the tires on your vehicle have good tread depth and are inflated to the proper pressure. Reduce the speed of your vehicle when driving in the rain. Hydroplaning occurs most frequently at higher speeds.

You cannot enter an intersection if traffic is backed up on the other side and you cannot get completely through the intersection. Wait until traffic ahead clears so you do not block the intersection.

On narrow roads, you must allow vehicles traveling in the opposite direction at least one-half of the main-traveled portion of the road. Both vehicles must have adequate space in order for the drivers to safely pass one another.

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

A steady yellow traffic light indicates that the light will soon change to red. You should be prepared to stop for the red light, if it is safe to do so.

If you arrive to an open intersection at the same time as a vehicle to your right, you should yield the right-of-way to that vehicle. You may then proceed when it is safe to do so.

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.

This type of triangular sign means drivers must yield. You must slow down as you come to an intersection marked with this sign and be prepared to stop. Let any other vehicles, bicyclists, or pedestrians pass safely before you proceed.

High speeds greatly increase stopping distances and severity of crashes. The faster you drive, the greater the impact or striking power of your vehicle, should you be involved in a collision.

A flashing red light means the same thing as a stop sign. If you encounter a flashing red light, you should come to a complete stop, yield to appropriate traffic and pedestrians, and only proceed when it is safe to do so.

An arrow painted on the pavement within a traffic lane indicates that drivers in the lane must make the movement indicated by the arrow. Drivers should follow directions given by any traffic signs or signals before proceeding in the direction indicated by the arrow.

Chevron signs like this indicate that the road curves sharply in the direction indicated by the chevron (in this case, to the left). There may be several chevron signs placed throughout a curve.

Before passing another vehicle, check your mirrors and blind spots. Before changing lanes, activate the appropriate turn signal. Re-enter the lane when you can see the front of the passed vehicle in your rearview mirror.

Studies show that, when worn properly, safety belts greatly reduce your chances of being seriously injured in a crash. Seat belts are 60 to 70 percent effective in preventing fatalities in auto crashes.

Idaho’s mountains can create special problems for drivers. If your view is obstructed while driving on a narrow road in the mountains and you are approaching a curve in the roadway, sound your horn and proceed carefully around the curve while remaining close to the right edge of the road.

"Reduced speed" signs inform drivers that they must reduce their speeds. If a new speed limit is posted on one of these signs, the new speed limit begins at the sign.

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.

White lines are used to separate traffic moving in the same direction. Solid lines indicate that drivers are not permitted to pass.

A steady yellow light on a traffic signal indicates that a steady red light will soon appear.

Do not drive in someone else’s blind spot. Move forward or drop back so that the other driver can see you.

This sign indicates that the right lane on a multilane roadway ends ahead. Traffic in the right lane must merge left.

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.

When turning left, drivers must yield the right-of-way to oncoming traffic. Drivers must also always yield the right-of-way to pedestrians, bicyclists, and other drivers who are already in the intersection.

If two vehicles arrive at the same time to an uncontrolled intersection, the driver on the left must yield to the driver on the right. The driver on the left may then proceed when it is safe to do so.

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.

Before passing, you should signal early enough for other drivers to know your plans in advance.

If you are being followed by an emergency vehicle that is not using its siren or flashing lights, you do not need to clear a path. Continue driving in a normal manner.