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Power Systems

Power Systems
A gas turbine power plant is best suited for

 Peak load.
 Base load.
 Emergency.
 None of these.

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Power Systems
Which of following power plants is free from environmental problem

 Nuclear.
  Hydroelectric.
 Steam.
 Diesel engine.

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

 less
 it does not related to breakdown voltage
None of these
 high

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Power Systems
The inductance of single phase two wire line is given by

 4×10-7× ln(d/r') H/m
 4×10-7× ln(r'/d) H/m
 0.4×10-7× ln(d/r') H/m
 0.4×10-7× ln(r'/d) H/m

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Power Systems
On a power system network the load is increasing represents the value of impedance

  remains constant.
  none of above.
  increase.
  decrease.

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Power Systems
Main bus bar protection scheme is /are

  differential protection.
  fault bus protection.
  both fault bus and differential protection.
  none of these.

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