Power Systems Which of the following is used in thermal plants All of these Joule cycle Rankine cycle Otto cycle All of these Joule cycle Rankine cycle Otto cycle ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 16 2 6 10 16 2 6 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 28 Ω 40 Ω 33 Ω 52 Ω 28 Ω 40 Ω 33 Ω 52 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required to spiliting of a heavy nucleus. none of above. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. none of above. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. ANSWER DOWNLOAD EXAMIANS APP
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 low alternator efficiency high energy loss in condenser low steam turbine mechanical efficiency high energy loss in boilers low alternator efficiency high energy loss in condenser low steam turbine mechanical efficiency high energy loss in boilers ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz ANSWER DOWNLOAD EXAMIANS APP
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