Question

Heavy trucks have 2 single wheels in the front and a set of double wheels at the back where the load on the truck is significant. These sets of double wheels are given to protect the roads. How do they protect the roads?​

Answer 1

Answer:

Explanation:

Buses and trucks have double wheels at the back because these are heavy vehicles with most of the loads resting towards the back. Also, the engine that drives the vehicle is attached to the back wheels so the double back wheels provides better hold on the ground. Double wheels are not used in the front since that would make the steering uncomfortable.