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Power Systems

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

  Air.
  Water.
  Liquid.
  Hydrogen.

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Power Systems
Which of the following statements are true?

 both 1 and 2
 nether 1 nor 2
 Bus admittance matrix is a sparse matrix
 Bus impedance matrix is a full matrix

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Power Systems
Maximum power transfer in a transmission line can be obtained by

 either 1 or 2
None of these
 reducing reactance
 increasing voltage level

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Power Systems
In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

 0.25
 0.75
 0.5
 1

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Power Systems
Which of the following is an impulse turbine

  None of above.
  Kaplan turbine.
  Francis turbine.
  Pelton turbine.

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Power Systems
A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is

 0.707 leading
 0 leading
 unity
 0.5

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