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Power Systems

Power Systems
At slack bus, which one of the following combinations of variables is not specified?

 V and δ
 P and Q
 Q and V
 P and V

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Power Systems
The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be

 4 MΩ
 16 MΩ
 32 MΩ
 8 MΩ

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Power Systems
What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?

 6114.05.
 15515.22.
 8113.27.
 10000.32.

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Power Systems
Reflection coefficient of voltage is Rv

 2Zs/(Zs + Zl)
 (Zs - Zl)/(Zs + Zl)
 2Zl/(Zs + Zl)
 (Zl - Zs)/(Zs + Zl)

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Power Systems
Which material is used in controlling chain reaction in a nuclear reactor

 Beryllium.
  Boron.
 Thorium.
 Heavy water.

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Power Systems
Nuclear reactors usually employ

 fusion.
 both of A and B.
  fission.
 none of above.

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