District Of Columbia CAR DMV Practice Test 15

This sign indicates that the overpass ahead has a low clearance. You should not proceed if your vehicle is taller than the height shown on the sign (in this case, 13 feet 6 inches).

A truck's blind spots are much larger than a smaller car’s blind spots. The driver cannot see your car behind their vehicle and you can't see what’s happening in traffic ahead if you're driving too closely behind the truck. Whether you are driving behind or to the side of the truck, if you can’t see the driver’s face in their side view mirror, then they can’t see you.

The faster you are driving, the longer it will take for you to stop to react to other drivers' unexpected moves.

Even if a vehicle is properly equipped with rearview and outside mirrors, it still has blind spots that cannot be seen in the mirrors. Large trucks have much larger blind spots than most passenger vehicles.

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.

When making a left turn, you should always begin signaling about 100 feet before the turn. You should keep your front wheels aiming straight ahead until it is safe to start your turn. This ensures that you will not be pushed into oncoming traffic if another vehicle hits you from behind.

Warning signs are usually yellow with black markings. This sign warns that merging traffic will be entering from the right, so drivers should prepare to allow the incoming traffic to safely merge.

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.

Bring your vehicle to a complete stop at a crosswalk to yield the right-of-way to any vehicle or pedestrian already in the intersection. You may carefully proceed if your lane is completely clear.

Develop a routine for entering and leaving your car. Before switching on the ignition, buckle your safety belt and see that all passengers do likewise.

Lap belts should fit snugly across your hip bones and the lower part of your abdomen. Shoulder belts should sit comfortably so that you can insert your fist between the belt and your chest.

Drivers must slow down when approaching an intersection. If a clear view of cross traffic is obscured, a driver should come to a stop and inch forward until they can see clearly in both directions.

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 must approach all railroad crossings with extreme caution and cross only when you know that no train is coming from either direction. Be aware of vehicles that must stop at all railroad crossings, such as school buses and trucks carrying hazardous materials.

This one-way sign indicates that traffic flows only in the direction of the arrow.

Warning signs are usually yellow with black markings. This sign warns that the divided highway ends ahead. Prepare to change lanes or shift lane position.

Only the passage of time can remove alcohol and its impairing effects from the body.

If you hit a parked vehicle or other property, you must leave a note with your name, phone number, and address securely attached to the vehicle or property that you hit.

Special child seats are available for children who are too small to wear regular safety belts. No person is strong enough to safely hold onto a child of any size during an accident or sudden stop. Never allow a child to ride in a vehicle unless they are properly fastened into a seat.

Ramps and bridges are suspended in the air, causing them to become icy very quickly in cold weather. Drive with extra caution when crossing a bridge in freezing temperatures.

Yield the right-of-way to any approaching emergency vehicle that is using its flashing lights or siren, regardless of its direction of travel. You must immediately drive to the right side of the road and stop until the emergency vehicle has passed. If you are within an intersection, pass through the intersection before coming to a stop on the right side of the road.

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.

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.

In general, vehicles at a four-way stop should proceed in the order that they arrive. However, if two vehicles arrive to the intersection at the same time, the vehicle on the left must yield the right-of-way to the vehicle on the right.

This sign indicates that there is a railroad crossing on the road ahead. You should always slow down when approaching a railroad crossing. Trains cannot yield to cars, so you must let them pass before crossing the tracks.