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What are the three essential requirement...

What are the three essential requirements to produce fire? How fire extinguisher is useful for controlling the fire.

A

water, light and air

B

fuel, air and heat (ignition temperature)

C

carbon dioxide, water and light

D

carbon monoxide, nitrogen and heat

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The correct Answer is:
B
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S CHAND IIT JEE FOUNDATION-COMBUSTION AND FLAME -Question Bank-17
  1. In which zone of a flame fuel remains in vapour form?

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  2. When the clothes of a person catch fire, you should cover the person w...

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  3. What are the three essential requirements to produce fire? How fire ex...

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  4. Inflammable substances have an ignition temperature:

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  5. The colour of the flame with the highest amount of heat is

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  6. Type of flame produced by a fuel depends upon

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  7. In which type of combustion the fuel catches fire immediately.

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  8. Which of these is a non-combustible substance?

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  9. Which of the following is mixed with a volatile liquid (ethyl mercapta...

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  10. Total amount of heat produced by a fuel having calorific value of 30 k...

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  11. Which one of the following is not a fossil fuel?

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  12. Yellow colour of the flame indicates

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  13. Substance having low ignition temperature is

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  14. When wood is used as fuel in chullahs, gaps are left in between the lo...

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  15. When water is poured over burning wood, the fire goes off. This is bec...

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  16. Which of the following statements is not true?

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  17. Match the points mentioned in column 'A' to the points mentioned in co...

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  18. Glass, metals, ceramics are the example of

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  19. Oxides of nitrogen and sulphur dissolve in rain water to produce

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  20. Explain why , we are advised not to sleep in a room having closed door...

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