1. Which of the following is a solid fuel?
A) Petrol
B) LPG
C) Coal
D) Kerosene
Answer: C) Coal
2. Which fuel is commonly used in cars?
A) Diesel
B) Wood
C) Biogas
D) Coke
Answer: A) Diesel
3. LPG stands for:
A) Liquid Petroleum Gas
B) Liquefied Petroleum Gas
C) Low Pressure Gas
D) Liquid Propane Gas
Answer: B) Liquefied Petroleum Gas
4. Which fuel is obtained from cow dung?
A) CNG
B) Biogas
C) LPG
D) Petrol
Answer: B) Biogas
5. Which of the following is a gaseous fuel?
A) Charcoal
B) Diesel
C) CNG
D) Kerosene
Answer: C) CNG
6. The cleanest fossil fuel is:
A) Coal
B) Diesel
C) Natural Gas
D) Wood
Answer: C) Natural Gas
7. Which fuel is mainly used in aeroplanes?
A) Kerosene (Aviation fuel)
B) Diesel
C) CNG
D) LPG
Answer: A) Kerosene (Aviation fuel)
8. Which fuel is used in thermal power plants?
A) Coal
B) Petrol
C) LPG
D) Biogas
Answer: A) Coal
9. Petrol is a product obtained from:
A) Coal
B) Wood
C) Crude Oil
D) Biogas
Answer: C) Crude Oil
10. Which fuel produces the least smoke?
A) Coal
B) Wood
C) CNG
D) Charcoal
Answer: C) CNG
11. Coke is obtained from:
A) Petrol
B) Coal
C) Natural Gas
D) Wood
Answer: B) Coal
12. Which fuel is stored in cylinders at homes for cooking?
A) Diesel
B) Petrol
C) LPG
D) CNG
Answer: C) LPG
13. Which of the following is a renewable fuel?
A) Coal
B) Biogas
C) Diesel
D) Petrol
Answer: B) Biogas
14. Which fuel is commonly used in generators?
A) Diesel
B) LPG
C) Wood
D) Coke
Answer: A) Diesel
15. Wood is classified as which type of fuel?
A) Liquid fuel
B) Solid fuel
C) Gaseous fuel
D) Nuclear fuel
Answer: B) Solid fuel
16. Which gas is the main component of CNG?
A) Oxygen
B) Nitrogen
C) Methane
D) Carbon Dioxide
Answer: C) Methane
17. Which fuel is used in rockets?
A) LPG
B) Petrol
C) Rocket Fuel (Liquid Hydrogen)
D) Coal
Answer: C) Rocket Fuel (Liquid Hydrogen)
18. Charcoal is produced by heating:
A) Coal
B) Wood
C) Diesel
D) Petrol
Answer: B) Wood
19. Which fuel is most suitable for rural cooking in biogas plants?
A) LPG
B) Biogas
C) Petrol
D) Diesel
Answer: B) Biogas
20. Which liquid fuel is used in lamps?
A) Diesel
B) Kerosene
C) Petrol
D) CNG
Answer: B) Kerosene
21. Which fuel has the highest calorific value?
A) Wood
B) Coal
C) Hydrogen
D) Charcoal
Answer: C) Hydrogen
22. Which of the following fuels is non-renewable?
A) Biogas
B) Wood
C) Coal
D) Solar Energy
Answer: C) Coal
23. Which fuel is commonly used in buses and trucks?
A) Petrol
B) Diesel
C) LPG
D) Biogas
Answer: B) Diesel
24. Natural gas is mainly composed of:
A) Methane
B) Butane
C) Propane
D) Hydrogen
Answer: A) Methane
25. Which fuel burns with a blue flame?
A) Coal
B) LPG
C) Wood
D) Charcoal
Answer: B) LPG
26. Which fuel is considered eco-friendly?
A) Coal
B) Diesel
C) CNG
D) Coke
Answer: C) CNG
27. Which fuel is used in kerosene stoves?
A) Petrol
B) Kerosene
C) LPG
D) Diesel
Answer: B) Kerosene
28. Which fuel is formed from the remains of plants and animals over millions of years?
A) Biogas
B) Fossil Fuel
C) Solar Fuel
D) Hydrogen Fuel
Answer: B) Fossil Fuel
29. Which fuel is used in lighters?
A) Butane
B) Coal
C) Diesel
D) Coke
Answer: A) Butane
30. Which fuel is compressed and stored at high pressure for vehicles?
A) LPG
B) CNG
C) Petrol
D) Kerosene
Answer: B) CNG