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Can you burn a piece of wood by bringing...

Can you burn a piece of wood by bringing a lighted matchstick near it ? Explain.

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LAKHMIR SINGH & MANJIT KAUR-COMBUSTION AND FLAME-EXERCISES
  1. Define the calorific value of a fuel.

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  2. "The calorific value of LPG is 55000 kj/kg". What does it mean ?

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  3. Can you burn a piece of wood by bringing a lighted matchstick near it ...

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  4. Why do you have to use paper or kerosene oil to start fire in wood ar ...

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  5. What is meant by rapid combustion ?

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  6. Give one example of rapid combustion.

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  7. What is meant by explosive combustion (or explosion) ?

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  8. Give one example of explosive combustion (or explosion)

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  9. How will you show that air is necessary for combustion ?

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  10. Can the process fo rusting be called combustion ? Give reason for your...

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  11. Why are fires produced by burning oil not extinguished by pouring wate...

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  12. Explain why, fire caused by electricity should not be extinguished by ...

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  13. How is the fire produced by burning oil (or petrol) extinguished ?

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  14. How is the fire caused by electricity extinguished ?

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  15. A durm full of kerosene catches fire. What is the simplest way to put ...

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  16. What is the first things you should do if a fire breaks out in your ho...

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  17. What does a Fire Brigade do when it arrives at a place where a buildin...

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  18. Describe one method of putting out a fire caused by burning wood or pa...

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

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  20. What is a flame ?

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