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Power Systems

Power Systems
Length of the cable is doubled, its capacitance C will be

 one-half.
 one-fourth.
 doubled.
 unchanged.

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Power Systems
Which of the following statements are true?

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

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Power Systems
The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is

 8 A.
 10 A.
  6 A.
 7 A.

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Power Systems
Which of the following material is not used as fuse element?

  Aluminium.
  Carbon.
  Copper.
  Silver.

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Power Systems
Which of the following is a reaction turbines

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

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Power Systems
In a long transmission line, if we increase the length of the line, the parameters A and B respectively

 decreases and decreases
 increases and increases
 increases and decreases
 decreases and increases

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