Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 50% 75% 86%% 90% 50% 75% 86%% 90% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Alternate formation and breakage of bubbles are called surgfication. All of these cavitations. water hamming. surgfication. All of these cavitations. water hamming. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor encased thick metal wall. encased by thick concrete wall. isolated from outside word with strong magnetic field. immersed in water pool. encased thick metal wall. encased by thick concrete wall. isolated from outside word with strong magnetic field. immersed in water pool. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Suspension type insulators are used for voltage beyond 440 V 230 V 11 kV 33 kV 440 V 230 V 11 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance Xm - Xs Xs - Xm 2Xs + Xm Xs +2 Xm Xm - Xs Xs - Xm 2Xs + Xm Xs +2 Xm ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power plants the size of coal after crushing 20 - 25 mm. 200 - 205 mm. 300 mm. 40 mm. 20 - 25 mm. 200 - 205 mm. 300 mm. 40 mm. ANSWER DOWNLOAD EXAMIANS APP
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