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Power Systems

Power Systems
Rating of fuse wire is expressed in

  Ampere.
 ÃŽÂ©.
  Mho.
  Watts.

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

 Beryllium.
 Thorium.
 Heavy water.
  Boron.

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Power Systems
Lightning arresters are used for

 protection of equipment from external lightning
 protection of equipment from short circuits
All of these
 protection of equipment from open circuits

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

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

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Power Systems
The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power?

 5.353 pu
 3.535 pu
 5 pu
 7 pu

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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?

 10000.32.
 6114.05.
 8113.27.
 15515.22.

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