Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 4 20 8 10 4 20 8 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silicon oxide silver copper any of the above silicon oxide silver copper any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pelton wheel turbine is a low head turbine. medium head turbine. high head turbine. none of above. low head turbine. medium head turbine. high head turbine. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems On a power system network the load is increasing represents the value of impedance increase. remains constant. none of above. decrease. increase. remains constant. none of above. decrease. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For flat voltage profile system, voltage regulation is 100% 50% any of the above 0% 100% 50% any of the above 0% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 45 kV 32 kV 36 kV 40 kV 45 kV 32 kV 36 kV 40 kV ANSWER DOWNLOAD EXAMIANS APP
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