MO DMV Weather and Hazardous Conditions 2

Question 1

When driving on a wet road in Missouri, at approximately what speed can hydroplaning begin to occur?

Accepted Answer

35 mph

Answer

Hydroplaning can begin at speeds as low as 35 mph when tires ride on a film of water instead of the road surface.

Question 2

If your vehicle begins to hydroplane, what should you do first?

Accepted Answer

Ease off the accelerator and avoid braking hard

Answer

Easing off the gas lets the tires regain contact with the road, while hard braking or sharp steering can cause a skid.

Question 3

In fog, why should you use low-beam headlights instead of high beams?

Accepted Answer

High beams reflect off the fog and reduce your visibility

Answer

High-beam light bounces off water droplets in fog and glares back at the driver, making it harder to see.

Question 4

Which road surfaces freeze first when temperatures drop?

Accepted Answer

Bridges and overpasses

Answer

Bridges and overpasses freeze first because cold air circulates both above and below the road surface.

Question 5

How much should you increase your following distance when driving on snow-covered or icy roads?

Accepted Answer

To at least 8-10 seconds

Answer

Stopping distances on ice can be up to ten times longer than on dry pavement, so a much larger gap is needed.

(MO DMV) Missouri Department of Motor Vehicle Practice Test