Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? Asynchronous line Synchronous line both 1 and 2 No need of same frequency for exchange of power Asynchronous line Synchronous line both 1 and 2 No need of same frequency for exchange of power ANSWER DOWNLOAD EXAMIANS APP
Power Systems Hydro-graph is similar to load curve. mass curve. energy load curve. both B and C. load curve. mass curve. energy load curve. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear power plants which material is/are used as coolant? liquid sodium beryllium graphite All of these liquid sodium beryllium graphite All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Short circuit any of the above Temperature Over load Short circuit any of the above Temperature Over load ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Corona is reduced by decreasing the supply frequency increasing the distance between the conductor All of these increasing the radius of the conductor decreasing the supply frequency increasing the distance between the conductor All of these increasing the radius of the conductor ANSWER DOWNLOAD EXAMIANS APP
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