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BCECE Engineering BCECE Engineering Solved Paper-2001

  • question_answer
    Water is flowing on the blades of a turbine at a rate of 100 kg/s from a certain spring. If the height of the spring be 100 m, the power transferred to the turbine will be:

    A)  100 W                                  

    B)  1 Kw                    

    C)  10 kW                  

    D)         100 kW

    Correct Answer: D

    Solution :

    Key Idea: Power is the rate of energy transferred. \[\text{Power}\,\text{=}\,\frac{\text{enegy}}{\text{time}}\] or            \[P=\frac{mgh}{t}\]                                        ?(i) Here, \[\frac{m}{t},100\,kg/s,\,g=10\,m/{{s}^{2}},\,\,h=100\,m\] Substituting the values, we obtain \[P=100\times 10\times 100={{10}^{5}}W=100\,kW\]


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