Power Systems If power P available from a hydroelectric plant is given by the formula P = 9.81QH, where Q is the flow rate through the turbine in l / s and H is the head in meters, then P will be unit of HP. kJ / S. kWh. W. HP. kJ / S. kWh. W. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If sag in an overhead line increase, tension in the line increase remains same decrease None of these increase remains same decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. economizer. air preheater. ash handling point. superheater. economizer. air preheater. ash handling point. superheater. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 8 MJ/MVA 4 MJ/MVA 2 MJ/MVA 16 MJ/MVA 8 MJ/MVA 4 MJ/MVA 2 MJ/MVA 16 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are Low capital cost. All of these Capability of quick starts. Quick response to load variation. Low capital cost. All of these Capability of quick starts. Quick response to load variation. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 21 20 13 10 21 20 13 10 ANSWER DOWNLOAD EXAMIANS APP
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