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7th Class Science Heat Question Bank Heat

  • question_answer
    In cold countries, why are steam pipes covered with asbestos or glass wool?

    A)  To prevent bursting due to expansion

    B)  To prevent heat loss due to conduction

    C)  To prevent radiation

    D)  All of the above

    Correct Answer: B

    Solution :

    In cold countries, steam pipes are covered with asbestos or glass wool (the most common modern day material). It prevents heat loss due to conduction.


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