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Power Systems

Power Systems
Surge tank is kept very close to the

 turbine
 spill way
 generator
 pen stock

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Power Systems
Thermal shielding is provided to

All of these
 absorb the fast neutron.
 prevent the reactor wall from getting heated.
 protected the operating personal from exposure to radiations.

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Power Systems
Which of the following circuit breakers produce least arc energy?

  Air blast CB.
 Minimum oil CB.
 Plain oil CB.
 Air break CB.

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Power Systems
The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase?

 1.25
 1.13
 0.89
 1

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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.
 10000.32.
 8113.27.
 15515.22.

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 83*83
 84*84
 34*34
 33*33

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