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Railways NTPC (Technical Ability) Fluid Mechanics and Machinery Question Bank Fluid Mechanics

  • question_answer
    A metallic piece weighs 80 N in air and 60 N in water. The relative density of the metallic piece is about:

    A) 8                                 

    B) 6

    C) 4                                 

    D) 2

    Correct Answer: D

    Solution :

    \[\operatorname{Relative}\,\,density=\frac{weight\,\,in\,\,air}{weight\,\,is\,\,water}\] \[=\frac{80}{60}=1.33=2\]


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