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Power Systems

Power Systems
Example of base load stations are

  gas turbine.
  both A and B.
  hydro.
  thermal.

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Power Systems
Which of following power plants normally operage at high speeds

  Thermal.
 Hydro electric.
 Diesel engine.
 Petrol engine.

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Power Systems
The capacitance of an overhead transmission line increases with

 neither 1 nor 2
 increase in height of conductors above ground
 both 1 and 2
 increase in mutual geometrical mean distance

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is suited for capacitor bank switching

  SF6.
  air blast.
  oil.
  vacuum.

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Power Systems
Condition for zero voltage regulation is

 cosφ = R/X
 cosφ = X/R
 tanφ = R/X
 tanφ = X/R

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

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

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