Power Systems The skin effect shows that current density is lower at the surface of the condutor current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the centre of the condutor current density is lower at the surface of the condutor current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the centre of the condutor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Percentage of carbon is highest in anthracite coal. lignite coal. coal gas. bituminous coal. anthracite coal. lignite coal. coal gas. bituminous coal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The method of neutral grounding affects the All of these positive sequence network negative sequence network zero sequence network All of these positive sequence network negative sequence network zero sequence network ANSWER DOWNLOAD EXAMIANS APP
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 steam turbine mechanical efficiency. low alternative efficiency. high energy loss from turbine exhaust to condenser. high energy loss in boiler. low steam turbine mechanical efficiency. low alternative efficiency. high energy loss from turbine exhaust to condenser. high energy loss in boiler. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 5 pu 0.25 pu 0.2 pu 1 pu 5 pu 0.25 pu 0.2 pu 1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs ANSWER DOWNLOAD EXAMIANS APP
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