DGT Weather & Hazardous Conditions 2

Question 1

When driving in heavy fog, which lighting configuration is correct?

Accepted Answer

Low beams and rear fog lights

Answer

Low beams reduce glare from fog particles, and rear fog lights help following drivers see you.

Question 2

What is 'black ice' and why is it especially dangerous?

Accepted Answer

A thin transparent layer of ice nearly invisible to drivers

Answer

Black ice is a thin, transparent ice layer that blends with the road surface, giving drivers no visual warning.

Question 3

When driving in a dust storm with near-zero visibility, what should you do?

Accepted Answer

Pull completely off the road, turn off all lights, and stay in the vehicle

Answer

Pulling completely off the road prevents other drivers from following your lights into the storm and rear-ending you.

Question 4

How does rain affect a vehicle's braking distance on a highway?

Accepted Answer

It can double or more the normal dry braking distance

Answer

Wet roads significantly reduce tire-to-road friction, greatly increasing the distance needed to stop.

Question 5

You notice your vehicle's windshield fogging up from the inside during rain. What is the most effective solution?

Accepted Answer

Use the air conditioning or defrost setting with outside air intake

Answer

The A/C dehumidifies the air, and using outside air prevents moisture buildup inside the cabin.

(DGT) Directorate-General for Traffic Test Practice Test