Question

HOW ARE FUELS CLASSIFIED ON THE BASIS OF THEIR PHYSICAL STATE ? GIVE TWO EXAMPLES OF EACH

Answer 1

on the basis of physical state of fuel they are classified inti solid liquid and gaseous state.

eg:-solid:wood, cow dung cakes and agricultural waste

liquid:kerosene oil,diesel and petrol

gaseous: biogas, cng and lpg

Answer 2

Fuel can be solid, liquid or gas.

Explanation:

Fuel can be either liquid, solid or gas based on their physical property.

1. Solid fuel can be firewood or cow dung cakes. These are especially used in the rural areas due to their availability.
2. Liquid fuel is the one that is commonly used. Example: Petrol, diesel, kerosene.
3. Gaseous fuel are gas derived from agricultural and domestic waste by a special set up or petroleum products. Example: Biogas (gobar gas), LPG (kitchen gas).