North Dakota CAR DMV Practice Test 21

Flashing red lights are used at dangerous intersections. Treat them like stop signs.

Warning signs are usually diamond-shaped with black markings on a yellow background. They alert drivers to upcoming hazards. This warning sign indicates that drivers are about to encounter a divided highway.

A yield sign means that you must slow down and yield the right-of-way to traffic in the intersection or roadway you are entering.

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

If you come to a roadway that is flooded, turn around and find another way to go. Do not attempt to drive through the water. It is impossible to determine the depth or current of the water and your vehicle could become submerged or swept away.

Regulation signs regulate traffic speed and movement, displaying rules which drivers must obey. This regulation sign means that left turns are prohibited.

At night, your field of vision is reduced. To make sure you are able to react to hazards on the roadway, always use appropriate headlights. Drive slowly enough that you are able to stop within the distance that you can see ahead.

Large flashing or sequential arrow panels are used in construction areas where a lane is closed. Prepare to slow down and merge in the direction indicated by the arrow.

This sign indicates that there is a sharp right turn ahead.

A flashing red light means that you must stop, yield to traffic and pedestrians, and go only when it is safe. At a railroad crossing, a flashing red light indicates that a train is approaching. Yield to the train, and go only when the lights have stopped flashing and all other active warning devices deactivate.

When you park on a downward-facing slope, turn your wheels sharply toward the side of the road. This way, if your vehicle starts to roll downhill, it will roll away from traffic.

This sign warns that especially slippery conditions exist when the road is wet.

You must stop at a railroad crossing when directed to do so by a flagger, stop sign, or warning devices, such as gates or flashing lights. Not all railroad crossings are equipped with such devices. It is against the law to drive around lowered railroad crossing gates.

Regulation signs regulate traffic speed and movement, displaying rules which drivers must obey. This regulation sign indicates that drivers turning left at a green light must yield to oncoming traffic and may complete the turn when it is safe to do so.

One strategy to avoid driving while impaired or intoxicated is to arrange for a ride home with a friend who does not drink. Drinking coffee or taking a cold shower cannot reduce your blood alcohol content or reduce the effects of alcohol. On average, it takes about an hour for the body to eliminate the alcohol from a single drink.

If the weather changes suddenly, you will need to adjust your driving to adapt. Always slow down when driving in rainy or foggy conditions. Be especially aware of vehicles behind you that may be going too fast for conditions.

When you drive, make sure each person in your vehicle wears a seat belt. In the event of a crash, a person without a seat belt becomes a flying object and a danger to each person in the vehicle.

Construction and maintenance signs are orange-colored and are used to notify drivers of unusual or potentially dangerous conditions in or near work areas. This sign warns drivers that they are approaching a construction zone and that they should prepare to lower their speed and drive with extraordinary caution.

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

When the road is wet or slippery, when you cannot see well, or when anything else makes conditions less than perfect, drive below the posted speed limit. Even if you are driving within the posted speed limit, you can still be ticketed for driving too fast for conditions.

When approaching an unmarked railroad crossing, slow down and be prepared to stop. Before you cross, be sure that no trains are approaching from either direction on any track. If you see or hear a train coming, stop at a safe distance from the nearest track and wait to proceed until after the train passes.

Yellow lines tell you that the traffic on the other side of the lines is moving in the opposite direction. You should never cross two solid yellow lines to pass from either direction.

You may not pass another vehicle on a hill or in a curve because you cannot see oncoming traffic and may cause a collision. Never pass another vehicle by driving onto the shoulder of a highway. Passing another vehicle by driving over a solid yellow line is prohibited.

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.

This sign indicates that there is a traffic signal ahead.