Power Systems Lightning arresters are used to protect electrical equipment against power frequency of over voltages. over currents due to lightning stroke. over voltages due to indirect lightning stroke. direct strokes of lightning. power frequency of over voltages. over currents due to lightning stroke. over voltages due to indirect lightning stroke. direct strokes of lightning. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs. 3. 20. 5. 7. 3. 20. 5. 7. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the value of line inductance increase remains unaffected decrease None of these increase remains unaffected decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 10 MW 15 MW 80 MW 20 MW 10 MW 15 MW 80 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Nuclear. Hydro Power Plant Gas-turbine. Thermal. Nuclear. Hydro Power Plant Gas-turbine. Thermal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power capacity of a transmission line can be increased by nether 1 nor 2 decreasing reactance value increasing voltage level either 1 or 2 nether 1 nor 2 decreasing reactance value increasing voltage level either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
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