8th Class Science Combustion and Flame Question Bank Combustion and Flame

  • question_answer When wood is used as a fuel in chullahs, gaps are left in between logs of wood. Why is it done so?

    A)                  To facilitate movement of air                

    B)                                         To prevent more consumption of wood                

    C)                         To control temperature

    D)                                         All of these

    Correct Answer: A

    Solution :

    Gaps are left in between logs of wood placed in chullahs to allow free movement of air, which helps in combustion.                


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