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Power Systems

Power Systems
India’s largest thermal power station is located at

 Chandrapur.
 Neyveli.
 Sarni.
 Kota.

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Power Systems
In thermal plant most of the energy is wasted in

 turbines
 condenser
 ESP
 boiler

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Power Systems
Which of the following statements is/are true? By increasing of temperature,

 sag increase
 tension decrease
 neither 1 nor 2
 both 1 and 2

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Power Systems
Critical mass of the fuel is the amount required to make the multiplication factor

 0.5.
 less than 1.
  equal to factor.
 more than 1.

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Power Systems
An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is

 3.75 pu
 7.25 pu
 2.5 pu
 4.28 pu

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Power Systems
If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have

 0.707 lagging power factor
 unity power factor
 zero power factor
 0.707 leading power factor

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