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Power Systems

Power Systems
Reflector nuclear reactor are made of

 steel.
 cast iron.
 boron.
  beryllium.

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" > X' < X
 X" < X' > X
 X" < X' < X
 X" > X' >X

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Power Systems
Pumped storage plant is a

 both 1 and 2
 peak load plant
None of these
 base load plant

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Power Systems
Peterson coil is used in case of transmission line for

 reduce ferranti effect
 improve power factor
 increase the voltage level
 compensation of arcing grounds

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Power Systems
Lightning arresters are used to protect electrical equipment against

 over currents due to lightning stroke.
 direct strokes of lightning.
 power frequency of over voltages.
  over voltages due to indirect lightning stroke.

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Power Systems
When a pumped storage power plant is operated in conjunction with a steam power plant

 chances of the tripping of the system decrease
All of these
 load factor of the steam plant is increased
 the operating cost of the steam plant become optimum

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