Power Systems Which of the following circuit breakers produce least arc energy? Air blast CB. Minimum oil CB. Plain oil CB. Air break CB. Air blast CB. Minimum oil CB. Plain oil CB. Air break CB. 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 0.707 lagging power factor unity power factor 0.707 leading power factor zero power factor 0.707 lagging power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The factor affecting run off are amount of vegetation and weather condition in the catchment area. rain fall pattern, shape and size of catchment area. the topography and nature of soil in the catchment area. all of above. amount of vegetation and weather condition in the catchment area. rain fall pattern, shape and size of catchment area. the topography and nature of soil in the catchment area. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to produce surge in the pipeline. none of above. supply water at constant pressure. relieve water hammer pressure in the penstock. produce surge in the pipeline. none of above. supply water at constant pressure. relieve water hammer pressure in the penstock. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively decrease and remain unaffected. decrease and increase. increase and remain unaffected. increase and decrease. decrease and remain unaffected. decrease and increase. increase and remain unaffected. increase and decrease. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Use of high pressure. All of these Use of steam for heating of boiler feed water. Reheat of steam an intermediate stages. Use of high pressure. All of these Use of steam for heating of boiler feed water. Reheat of steam an intermediate stages. ANSWER DOWNLOAD EXAMIANS APP
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