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Power Systems

Power Systems
Which of the following quantities are to be calculated for generator bus?

 δ and V
 Q and δ
 P and V
 P and Q

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Power Systems
Which of the following rotor is used in thermal power plants?

 salient pole rotor
 squirrel cage rotor
 either of these
 cylindrical rotor

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Power Systems
Which of the following represents the sag(S) of a transmission line?

 S = wl²/8T
 S = wl²/16T
 S = wl²/4T
 S = wl²/2T

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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?

 2.90 kW
 9.81 kW
 19.60 kW
 4.45 kW

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Power Systems
The main objectives of electrical power transmission is/are

 Voltage regulation of the transmission line must be zero or minimum
 nether 1 nor 2
 Transmission system must be more efficient with minimum line losses
 both 1 and 2

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Power Systems
The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by

 A resistance of j100/3 ohm.
 A resistance of 100 ohm.
 A resistance of 100/3 ohm.
 A resistance of j300 ohm.

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