1. Materials used for production of heat energy are called
(A) Combustion
(B) Fuel
(C) Primary fuel
(D) Secondary fuel
2. Combustible substance produce heat on burning is called
(A) Combustion
(B) Fuel
(C) Primary fuel
(D) Secondary fuel
3. Which one is an artificial or derived fuel
(A) Natural gas
(B) Petroleum
(C) Coal
(D) Kerosene oil
4. Wood, sui gas and petroleum are the examples of
(A) Fuel
(B) Combustion
(C) Primary fuel
(D) Secondary fuel
5. Coke, petrol and water gas are the examples of
(A) Secondary fuel
(B) Combustion
(C) Primary fuel
(D) Fuel
6. Depending upon the physical state of the fuel it can be divided into groups
(A) 2
(B) 5
(C) 4
(D) 3
7. The calorific value of _______ is 8650-8700 Kcal/Kg
(A) Dry wood
(B) Lignite
(C) Anthracite coal
(D) Peat
8. The petrol is also called_______
(A) Gasoline
(B) Diesel
(C) Heavy oil
(D) Benzoyl
9. The fuel _______ is used as mobile oil
(A) Gasoline
(B) Heavy oil
(C) Diesel
(D) Benzoyl
10. ________ contains methane about 85%
(A) Natural gas
(B) Water gas
(C) Oil gas
(D) Biogas
11. ________ gas is produced from the buffalo waste or dung
(A) Natural gas
(B) Biogas
(C) Oil gas
(D) Water gas
12. The word LPG stands for________ gas.
(A) Liquefied petroleum
(B) Water
(C) Oil
(D) Natural
13. Production of heat, light along a chemical change is called
(A) Heating
(B) Production
(C) Combustion
(D) Fuel
14. The burnable substances are called
(A) Combustibles
(B) Combustion
(C) Combustion supporters
(D) Fuel
15. The unit of heat in S.I system is
(A) Calorie
(B) BTU
(C) Calorific value
(D) Kilocalorie