Question

Give Reason-:

1. Dams have very broad base.

2. Why are cutting instruments sharpened.

3. Trucks are provided with double wheel on the rear side.

Answer 1

1) dams have very broad base as the height of a dam is very high so the water stored in the dam at a high height makes a pressure at the base of the dams so to protect Dam from the water pressure at the base the base of the dams are made broad......

2) cutting instruments are made sharp as to cut objects easily and to make pressure to cut the object the cutting instruments are made sharp..

3) trucks are provided with double wheel on the rear side as the trucks are used to load heavy materials to transport so to balance the weight and easily transport the material the trucks are provided with double Wheels on the rear side