Fuels

Q.

Give two examples each for a solid, liquid and gaseous fuel along with some important uses.

Q.

Which of the following is a solid fuel?

1. Diesel

2. Wood

3. LPG

4. Petrol

Q.

coal : heat : : wax : ?

1. Energy

2. Force

3. Light

4. Torch

Q. A boy is riding a bicycle. From where do you think a boy is getting his energy?

1. Electricity
2. Sunlight
3. Food
4. Earth

Q. Choose whether true or false:-
CNG is expensive than petrol

1. True
2. False

Q.

what is full form of cng

Q. What is a huge disadvantage of using fuels like petrol and diesel?

Q. what is the meaning of LPG and CNG?