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Power Systems

Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 8
 2
 4
 5

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Power Systems
India 1st nuclear plant was set up at

  Kalpakkam.
  Rana pratap sagar.
  Tarapur.
  Bhaba.

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Power Systems
The skin effect of conductor will increase when

 resistivity decrease
All of these
 frequency decrease
 diameter decrease

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Power Systems
Earthing switch is used for

 measuring of safety voltage
All of these
 protection of equipment from ground faults
 discharging residual energies

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Power Systems
A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is

 10
 8
 4
 20

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Power Systems
If the fault is very nearer to the generator, the fault current is

 larger
 less
 zero
 any of the above

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