A Pelton wheel develops 1750 kW under a head of 100 metres while running at 200 r.p.m. and discharging 2500 litres of water per second. The unit power of the wheel is


A. 0.25 kW
B. 0.75 kW
C. 1.75 kW
D. 3.75 kW

• Unit power is the the power required to raise the fluid up to 1m head.
  
  So,
  
  Unit power = total power / total head.
  
  = 175/100.
  
  = 1.75
  
  so option(C) is answer
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