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Power Systems

Power Systems
Surge tank is kept very close to the

 generator
 pen stock
 turbine
 spill way

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Power Systems
On what factor does the performance of a circuit breaker depend?

  None of these.
 Critical length of breaking.
  Both A and C.
  Breaking speed.

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Power Systems
Which of the following represents the transmission line positive sequence reactance

 2Xs + Xm
 Xm - Xs
 Xs +2 Xm
 Xs - Xm

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Power Systems
The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation

 any of the above
 (Z1 = Z2) > Z0
 (Z1 = Z2) < Z0
 Z1 = Z2 = Z0

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Power Systems
On what factors does the selection of a water turbine depend

  All of above.
 Nature of load.
 Speed.
 Working head.

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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?

 15515.22.
 10000.32.
 6114.05.
 8113.27.

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