Power Systems Alternate formation and breakage of bubbles are called water hamming. surgfication. All of these cavitations. water hamming. surgfication. All of these cavitations. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 8 MJ 400 MJ 50 MJ 200 MJ 8 MJ 400 MJ 50 MJ 200 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The presence of earth in case of overhead lines decrease inducatance decrease capacitance increase capacitance increase inductance decrease inducatance decrease capacitance increase capacitance increase inductance ANSWER DOWNLOAD EXAMIANS APP
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? 86%% 50% 75% 90% 86%% 50% 75% 90% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer in a transmission line can be obtained by reducing reactance None of these increasing voltage level either 1 or 2 reducing reactance None of these increasing voltage level either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 2nd harmonic current. 5th harmonic current. 3rd harmonic current. 7th harmonic current. 2nd harmonic current. 5th harmonic current. 3rd harmonic current. 7th harmonic current. ANSWER DOWNLOAD EXAMIANS APP
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