Driving in Adverse Conditions Flashcards

What is hydroplaning, and when is it most likely to occur?

Answer: Loss of tire contact with the road due to water; most likely at high speeds in rain

Hydroplaning happens when water builds up faster than tires can disperse it, causing the vehicle to ride on a water film at higher speeds.

During a whiteout blizzard, if you must pull over, you should:

Answer: Pull completely off the road and keep your lights on so others can see you

Pulling fully off the road and keeping lights on prevents other vehicles from colliding with your stopped car.

Which action is LEAST effective when driving on snow-covered roads?

Answer: Applying cruise control to maintain a steady speed

Cruise control can cause a vehicle to accelerate to regain speed after a slip, worsening loss of traction on snow.

When visibility drops below a safe level due to blowing dust or sand, the first thing you should do is:

Answer: Reduce speed, turn on headlights, and pull off the road if needed

Slowing down, using headlights, and exiting the roadway if necessary are the safest responses to a dust storm.

What effect does tire pressure have on driving in cold weather?

Answer: Tire pressure decreases in cold temperatures, affecting traction and handling

For every 10°F drop in temperature, tire pressure drops about 1 PSI, which can reduce traction and fuel efficiency.

When driving in fog, you should keep your speed:

Answer: Low enough to stop within the distance you can see ahead

Your stopping distance must always be within the range of your visible sight distance to avoid hitting unseen obstacles.

In icy conditions, which vehicle system is most helpful in preventing skids during braking?

Answer: Anti-lock Braking System (ABS)

ABS prevents wheel lockup during hard braking, allowing the driver to steer while stopping on slippery surfaces.