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Power Systems

Power Systems
Cheapest plant in operation and maintenance is

  hydroelectric.
  diesel power.
  nuclear.
  steam power.

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Power Systems
Nuclear power plant are used as

 peak load plants.
 none of above.
 intermediate load plants.
  base load plants.

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Power Systems
Reactance relays are used for the protection of

 short transmission lines only
All of these
 long transmission lines only
 medium transmission lines only

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Power Systems
For n bus power system size of Y bus matrix is

 (n-2)×(n-2)
 n×n
 (n-1)×(n-1)
 (n-1)×(n-2)

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Power Systems
A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line

 long transmission line
 medium transmission line
 any of the above
 short transmission line

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes is

  Kaplan.
 Francis.
 Impeller.
 Pelton.

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