Power Systems Percentage of carbon is highest in bituminous coal. lignite coal. anthracite coal. coal gas. bituminous coal. lignite coal. anthracite coal. coal gas. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is 55.1. 10. 5. 20. 55.1. 10. 5. 20. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 6. 16. 24. 12. 6. 16. 24. 12. 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? 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is none of these. equal to unsectional bus bar. much lower than with unsectional bus bar. much higher than with unsectional bus bar. none of these. equal to unsectional bus bar. much lower than with unsectional bus bar. much higher than with unsectional bus bar. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Aluminium is now most commonly employed conductor material in transmission lines than copper because its tensile strength is more costlier it is more conductive it is cheaper and lighter its tensile strength is more costlier it is more conductive it is cheaper and lighter ANSWER DOWNLOAD EXAMIANS APP
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