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Power Systems

Power Systems
A hydroelectric power station is commonly found in

 swamps.
 grasslands.
  hilly areas.
 desert areas.

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Power Systems
Which of the following is/are the methods of improving transient stability?

 Fast acting excitation control
 Dynamic breaking
All of these
 Fast acting governing system

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Power Systems
Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge?

 9.81 kW
 4.45 kW
 2.90 kW
 19.60 kW

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Power Systems
Advantage/s of per unit system as compare to absolute system?

 only one equation is required
 calculation time is less
All of these
 memory required is less

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Power Systems
If we increase the spacing between the phase conductors, the value of line inductance

None of these
 remains unaffected
 increase
 decrease

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Power Systems
A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is

 0 leading
 unity
 0.707 leading
 0.5

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