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7. | Water falls from a height of 60m at the rate of 15kg.s to operate a turbine. The losses due to friction forces are 10% of energy. How much power is generated by the turbine? g=m/s2? | |
A. | 7kW | |
B. | 10.2kW | |
C. | 12.3kW | |
D. | 8.1kW | |
Answer: Option D | |
Explanation: | |
P = W/t=mgh/t=(15×10×60)/1 = 9000W = 9kW |
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