Tennessee CAR DMV Practice Test 21

If two vehicles arrive at the same time to an intersection that has stop signs on all corners, the vehicle to the right has the right-of-way.

There is zero tolerance for alcohol use by drivers under age 21. If you are under 21, the detection of any trace of alcohol in your system will result in stiff penalties, including the suspension of your license for two years.

This sign marks a one-way road, entrance, or exit. If you are facing this sign, traffic is coming toward you. Turn around if you are driving toward this sign.

Drivers making a left turn must yield to all vehicles approaching from the opposite direction. This includes bicycles and motorcycles.

If possible, try to only deal with one roadway hazard at a time. If you want to pass a pedestrian but an oncoming vehicle is approaching, slow down and let the vehicle pass. You may then pass the pedestrian if it is safe to do so.

When a school bus is stopped on the road ahead with its lights flashing and its stop arm extended, you must come to a complete stop and wait to proceed until the lights have stopped flashing and the stop arm is withdrawn. Even after the bus begins to move again, do not proceed until you are sure there are no children crossing the road ahead of you.

Pedestrian crosswalks are often shown by white, solid lines to emphasize pedestrian crossing points. Crosswalks may have additional lines between the white, solid lines or in place of the parallel lines. However, crosswalks may also be unmarked.

If an oncoming driver fails to dim their headlights, look toward the right side of the road. This will keep you from being blinded by the other vehicle’s headlights and allow you to see enough of the road to stay on course. Do not try to retaliate by keeping your bright lights on.

A steady green traffic light indicates that the driver may continue through the intersection. The driver should yield to traffic or pedestrians already in the intersection and proceed when the intersection is clear.

Warning signs are usually yellow with black markings. This sign indicates that a divided highway is beginning and cars should keep to the right.

Use your right foot for both braking and accelerating. You should apply the brakes gently with increasing pressure so that your vehicle stops gradually and smoothly.

With decreased visibility and the glare of oncoming headlights, you cannot see as far ahead at night as you can during the day. Always use headlights and exercise caution when driving in the dark.

Do not pass unless you have enough space to return to the driving lane. Before you return to the driving lane, be sure you have enough room between yourself and the vehicle you have passed. When you can see both headlights of the passed vehicle in your rearview mirror, it is safe to return to the driving lane.

Tennessee law requires that all automobiles have both a regular foot brake and a parking brake.

If you notice that the road ahead is covered by heavy smoke, reduce your speed immediately, drive as far as possible to the right, and stop off the roadway. Only then should you determine if it is safe for you to continue. Remember that certain kinds of smoke can irritate your eyes and lungs or even kill you.

When driving in a work zone, keep a safe distance between your vehicle and traffic barriers, trucks, construction equipment, workers, and other vehicles. Increase your following distance and do not tailgate.

When merging onto a freeway, you should enter at or near the speed of traffic.

The flashing overhead lights and stop arm on a school bus will be activated when the bus is stopped to load or unload students. If approaching a bus using these signals, you may not proceed until the red lights have stopped flashing and the stop arm has been retracted. Never pass a school bus that is dropping off or picking up students.

You may never drive off the paved or main-traveled portion of the road and onto the shoulder to pass another vehicle.

Blood alcohol concentration (BAC) is a measurement of the percentage of alcohol in the blood. The higher the BAC number, the more impaired a person is.

Drivers must yield the right-of-way to pedestrians who are crossing the street in any marked or unmarked crosswalk. In the interest of safety, drivers should yield the right-of-way to people crossing any street.

If you are already within an intersection when the light changes from green to yellow, do not stop. Proceed cautiously, completing the left turn when it is safe to do so. When making a left turn, you must always yield to oncoming traffic.

If a tire suddenly goes flat while you are driving, hold the steering wheel tightly and keep the vehicle moving straight. Slow down gradually by taking your foot off the gas pedal and using the brakes lightly.

If a tire blows out or suddenly goes flat while you are driving, grip the steering wheel firmly and keep the vehicle aiming straight. Take your foot off the accelerator and do not brake. Allow the vehicle to slow by itself and use the brakes gently, but only if necessary. Pull off the road when it is safe to do so.

The posted maximum speed limit is the fastest legal speed you can travel on a road under ideal conditions. It is safest to drive at the same speed as surrounding traffic, up to the maximum speed limit. Maintaining a safe speed at all times is a responsibility shared by all motorists.

When a steady yellow light appears on a traffic signal, you should prepare to stop. If you are already within the intersection, you should clear the intersection as quickly as possible.

When driving in fog, you should slow down and use your low beam headlights. If the fog is so bad that you cannot see, pull off the road and wait for the fog to clear.

If you are in a lane corresponding to a signal displaying a green arrow, you may proceed in the direction of the arrow when the way is clear. This is true whether the arrow is displayed alone or together with another signal.

Alcohol and other drugs can negatively effect a number of skills needed for safe driving, including a driver's reaction time, coordination, alertness, and ability to concentrate.

Downward-facing triangular signs mean drivers must yield. When approaching a yield sign, slow down to a speed that is reasonable for existing conditions and stop if necessary. If you must stop, do so at a marked stop line, if it exists.