What might be the effect of sand scattered on the road?
- Correct answer: Vehicle skidding, due to reduced friction between the tires and the road.
- Tire overheating, due to increased friction between the tires and the road.
- Better braking force, due to increased friction between the tires and the road.
- It might conceal important road signs.
Why this is the answer
The correct answer in the official bank: Vehicle skidding, due to reduced friction between the tires and the road.
Sand acts like a layer of tiny loose grains between the tires and the asphalt, so friction drops and grip becomes weak. When braking, turning or accelerating, the vehicle can skid, and stopping distance grows. Sand does not improve braking, as it might seem. When you see sand on the road, slow down early, keep a longer following distance and avoid sharp maneuvers.