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GATE Mechanical 2014 Set 1 | Question: 16

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In a power plant, water (density = $1000$ $kg$/$m^3$) is pumped from $80$ $kPa$ to $3$ $MPa$. The pump has an isentropic efficiency of $0.85$. Assuming that the temperature of the water remains the same, the specific work (in $kJ$/$kg$) supplied to the pump is

  1. $0.34$
  2. $2.48$
  3. $2.92$
  4. $3.43$
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