Power Systems Lightning arresters are made up of which material? silicon oxide any of the above silver copper silicon oxide any of the above silver copper ANSWER DOWNLOAD EXAMIANS APP
Power Systems The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is 500 kW 250 kW 300 kW 750 kW 500 kW 250 kW 300 kW 750 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of none of these. short lines. long lines. medium lines. none of these. short lines. long lines. medium lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system? 0.25 0.5 0.75 1 0.25 0.5 0.75 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? -0.76 Hz 0.76 Hz -0.85 Hz 0.85 Hz -0.76 Hz 0.76 Hz -0.85 Hz 0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have 0.707 leading power factor zero power factor unity power factor 0.707 lagging power factor 0.707 leading power factor zero power factor unity power factor 0.707 lagging power factor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS