Power Systems Lightning arresters are used to protect electrical equipment against over voltages due to indirect lightning stroke. over currents due to lightning stroke. power frequency of over voltages. direct strokes of lightning. over voltages due to indirect lightning stroke. over currents due to lightning stroke. power frequency of over voltages. direct strokes of lightning. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Independent of its length. Directly proportional to square root of its length. Inversely proportional to square root of its length. Directly proportional to its length. Independent of its length. Directly proportional to square root of its length. Inversely proportional to square root of its length. Directly proportional to its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Nuclear. Gas-turbine. Thermal. Hydro Power Plant Nuclear. Gas-turbine. Thermal. Hydro Power Plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydroelectric power station is commonly found in swamps. hilly areas. grasslands. desert areas. swamps. hilly areas. grasslands. desert areas. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The unit protection scheme provides simultaneous protection. remote protection. back up protection. primary protection. simultaneous protection. remote protection. back up protection. primary protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 80% 78% 82% 76% 80% 78% 82% 76% ANSWER DOWNLOAD EXAMIANS APP
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