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Power Systems

Power Systems
Attenuation occurs due to

 resistance
 conductance
 both 1 and 3
 inductance

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Power Systems
Skin effective is more in case of

None of these
 communication lines
 same in both cases
 power lines

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Power Systems
One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is

 130.2 MWhr
 135.3 MWhr
 140 MWhr
 120 MWhr

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Power Systems
The term self GMD is used to calculate

 inductance
 resistance
 capacitance
 both 1 and 2

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Power Systems
Tidal power plant is a example of which of the following plant?

None of these
 peak load plant
 base load plant
 either 1 or 2

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Power Systems
To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have?

 Δ-Y connection
 Y-Δ connection
 Y-Y connection
 Δ-Δ connection

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