Last updated on December 9th, 2023 at 08:45 pm
11. What is the primary purpose of a fuel?
- To create light
- To produce electricity
- To provide energy through combustion
- To act as a fire extinguisher
Answer: c) To provide energy through combustion
12. Which of the following is a gaseous fuel commonly used in vehicles?
- Kerosene
- Diesel
- LPG
- Charcoal
Answer: c) LPG
13. What is the lowest temperature at which a substance can catch fire called?
- Boiling point
- Melting point
- Ignition temperature
- Flashpoint
Answer: c) Ignition temperature
14. Which of the following substances is considered inflammable?
- Water
- Sand
- Petrol
- Wood
Answer: c) Petrol
15. What is the purpose of a fire extinguisher?
- To increase the temperature of a fire
- To provide oxygen to the fire
- To disrupt the contact between air and the fire
- To create a larger flame
Answer: c) To disrupt the contact between air and the fire
16. Why is water a good substance for firefighting?
- Because it increases the temperature of the fuel
- Because it covers the fire like a blanket
- Because it is a fuel itself
- Because it produces more oxygen
Answer: b) Because it covers the fire like a blanket
17. In which situation should you NOT use water to extinguish a fire?
- When clothes catch fire
- When electrical equipment is on fire
- When burning wood
- When using a gas stove
Answer: b) When electrical equipment is on fire
18. What is the best extinguisher for fires involving electrical equipment and inflammable materials like petrol?
- Water
- Sand
- Carbon dioxide
- Oxygen
Answer: c) Carbon dioxide
19. Which type of combustion involves a sudden reaction with the release of heat, light, sound, and a large amount of gas?
- Rapid combustion
- Spontaneous combustion
- Controlled combustion
- Explosion
Answer: d) Explosion
20. What factor affects the rate of combustion by a combustible substance?
- The presence of oxygen
- The color of the substance
- The shape of the flame
- The density of the air
Answer: a) The presence of oxygen
