Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of low alternative efficiency. high energy loss from turbine exhaust to condenser. low steam turbine mechanical efficiency. high energy loss in boiler. low alternative efficiency. high energy loss from turbine exhaust to condenser. low steam turbine mechanical efficiency. high energy loss in boiler. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conversion ratio of a breeder reactor is equal to unity. less than unity. none of above. more than unity. equal to unity. less than unity. none of above. more than unity. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 3.535 pu 7 pu 5.353 pu 5 pu 3.535 pu 7 pu 5.353 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines? 3 6 5 4 3 6 5 4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Direct conversion of heat energy into electrical energy is possible through Fuel or solar cell. MHD generator. Both A and C. Thermal converters. Fuel or solar cell. MHD generator. Both A and C. Thermal converters. 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 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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