Self Studies

Combustion and ...

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  • Question 1
    1 / -0

    Why electrical equipment on burning do not extinguished fire by water? 

  • Question 2
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    Which of the following releases least amount of pollutants on combustion?

  • Question 3
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    How many zones are present in candle flame? 

  • Question 4
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    For burning, ....... is needed.

  • Question 5
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    On placing an inverted tumbler over a burning candle, the flame extinguishes after some time. This is because of the non-availability of:

  • Question 6
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    What is the best way to extinguish fire, if a person's clothes catch fire?

  • Question 7
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    Which one of the following has the highest calorific value?

  • Question 8
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    Which of the following is not a combustible substance?

  • Question 9
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    Choose the correct statement from the following.

    Forest fires are usually due to ______________.

  • Question 10
    1 / -0

    Choose the correct statement about inflammable substances from the following statements. They have:

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