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Power Systems

Power Systems
Based on the discharge, Kaplan turbine will discharge

 >10000 lpm
 1000 lpm

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Power Systems
Operator "a" rotates a vector

 clock wise direction
 either 1 or 2
 nether 1 nor 2
 anti clock wise direction

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Power Systems
For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is

 12.2 kV / μs.
 10.01 kV / μs.
 2.0 kV / μs.
  9.01 kV / μs.

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Power Systems
Which of the following is a reaction turbines

  Pelton turbine and Francis turbine.
  Kaplan and Pelton turbine.
  None of these.
  Francis turbine and Kaplan turbine.

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Power Systems
Which of the following produces the radio interference in communication lines?

 both 1 and 2
 electro static induction
 electro magnetic induction
None of these

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Power Systems
The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

 8.936 pu
 7.936 pu
 9.936 pu
 10.936 pu

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