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Power Systems

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

 Sarni.
 Neyveli.
 Kota.
 Chandrapur.

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Power Systems
If the load is short circuited, then reflection coefficient of voltage is

 -1
 1
 -2
 0

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

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Power Systems
A diesel power plant is generally used as a/an

 Peak loads.
 Base load.
 Any of above.
 Standby/emergency plant.

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Power Systems
The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of

 high energy loss in condenser
 low steam turbine mechanical efficiency
 high energy loss in boilers
 low alternator efficiency

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Power Systems
For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV?

 4 MJ/MVA
 6 MJ/MVA
 2 MJ/MVA
 8 MJ/MVA

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