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Give four examples of non-combustible ma...

Give four examples of non-combustible materials.

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VGS PUBLICATION-BRILLIANT-COMBUSTION , FUELS AND FLAME-EXERCISE
  1. How do you appreciate use of fossil fuels in daily life?

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

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  3. Give four examples of non-combustible materials.

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  4. Why is water not suitable as fire extinguisher for fires involving oil...

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  5. Which zone of a flame does a goldsmith use for melting gold and silver...

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  6. Which type of substances give flame?

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  7. What would happen if oxygen stops to support combustion? Make a guess....

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  8. Let us assume that you are on the moon. If you try to focus sunlight o...

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

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  10. Water is not used to control fires involving electrical equipment.Why?

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  11. Give reasons. Paper by itself catches fire easily whereas a piece of p...

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  12. Explain how CO2 is able to control fires.

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  13. What are the three essential requirements for producing fire?

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  14. Why "CNG" being used as a fuel for vehicles?

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  15. Whether rusting is combustion reaction or not ? Why

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  16. List the ways adopted by fire fighters to combat fires.

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  17. Draw the diagram of candle flame and label all the zones.

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  18. Explain giving reasons: In which of the following situations water wil...

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  19. Explain giving reasons: In which of the following situations water wil...

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  20. In a few years the fuels on earth will be exhausted. Think, what would...

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