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Power Systems

Power Systems
For large plants of capacity for more than 15 MW, what type of cooling is used

  Hydrogen.
  Water.
  Liquid.
  Air.

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Power Systems
How to find the total number of strands (N) when number of layers (x) are given

 Total number of strands N = 3x² + 3x - 1
 Total number of strands N = 3x² - 3x - 1
 Total number of strands N = 3x² + 3x + 1
 Total number of strands N = 3x² - 3x + 1

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Power Systems
Which of the following methods is/are used for reactive or voltage compensation

 generation excitation control
All of these
 shunt capacitor
 series capacitor

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Power Systems
In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by

 Gauss constant
 Acceleration factor
 Lagrange multiplier
 Blocking factor

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Power Systems
Example of base load stations are

  both A and B.
  thermal.
  hydro.
  gas turbine.

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Power Systems
In which of the following transmission lines capacitance effect is negligible?

 medium transmission lines
 long transmission lines
 both 1 and 3
 shoart transmission lines

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