What are chains used for?
Strong metal chains called snow chains stop trucks skidding on icy or snow-covered roads. The chains are wrapped around all the truck’s tyres and cut into the ice or snow, gripping it tightly. In cold countries, truck drivers always carry snow chains with them.
Amazing! Some farm tractors have huge double sets of wheels to stop them from churning up the soil. In very muddy ground, normal tractors sink into the mud. Double wheels spread the tractor’s weight over a bigger area to stop it sinking.
Which trucks race across the Sahara?
Trucks compete in many rallies, including the famous Paris-Dakar Rally that crosses the Sahara Desert in northern Africa. More trucks carry spares and mechanics for other competitors, who race in cars and on motorbikes.
What is four-wheel drive?
When a truck has four-wheel drive, it means that the engine makes all the wheels turn. In some trucks, the engine only turns two of the wheels. Four-wheel drive is good for driving off-road on muddy tracks.
Picture Credit : Google