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Power Systems

Power Systems
Attenuation occurs due to

 resistance
 both 1 and 3
 conductance
 inductance

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Power Systems
The power output of a nuclear power station is proportional to

 square root of the rate at which fission reaction occurs.
  the rate at which fission reaction occurs.
 none of above.
 square of the rate at which fission reaction occurs.

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Power Systems
The positive, negative and zero sequence impedances of a transmission line are 0.5,0.5 and 1.1 pu respectively. The self (Zs) and mutual (Zm) impedances of the line will be given by

 Zs = 0.2 pu, Zm =0.7 pu
 Zs = 0.5 pu, Zm =0.6 pu
 Zs = 0.6 pu, Zm =0.5 pu
 Zs = 0.7 pu, Zm =0.2 pu

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Power Systems
The function of reflector is to

 none of above.
 reduce the speed of the neutrons.
  bounce back most of the neutrons that escape from the fuel core.
 stop the chain reaction.

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Power Systems
A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator?

 0.1
 10
 1000
 0.001

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Power Systems
In transmission lines distribution constants are

 inductance and resistance
 resistance
 both 1 and 2
 inductance and capacitance

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