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How can we put off the fire if it breaks...

How can we put off the fire if it breaks out?

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NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. What is the criteria to decide a best fuel ?

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  2. What is calorific value? Write its units

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  3. How can we put off the fire if it breaks out?

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  4. Why the fire brigade start the work by putting off the electric mains?

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  5. How does water help in eliminating the factors, which support the comb...

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  6. What is combustion ?

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  7. What are inflammable substance? Give examples.

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  8. Write the names of any two liquid fuels.

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  9. What is the criteria to decide a best fuel ?

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  10. What is calorific value? Write its units

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  11. “Sneha wanted to know why paraffin wax in a candle and the wick in a d...

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  12. Give two examples of fossil fuels.

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  13. What chemicals are present in the substances applied on the head of a ...

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  14. Where do you find the red phosphorous on the sides of match box or on ...

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  15. Name the products formed when a candle burns in the air.

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  16. Write an activity to prove that oxygen helps in burning.

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  17. "Is combustion possible without the supply of oxygen? Discuss with you...

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  18. The oil fires should not be sprayed with water. Why?

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  19. What precautions are to be taken while pouring water on fire?

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  20. A slow fire bursts into a flame when air is blown on it, but a candle ...

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