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Railways NTPC (Technical Ability) Theory of Machines and Machine Design Question Bank Theory of Machines

  • question_answer
    Out of the following impurities generally found in water, which one requires special consideration in case of very high pressure boilers?

    A) Hydrogen                      

    B) Ammonia

    C) Silica                

    D) Dissolved salts

    Correct Answer: C

    Solution :

    In case of very high pressure boiler, impurities of silica in water require special consideration.


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