Power Systems The draft tube is provided to None of these increase the acting head on the water wheel. reduce the effect of water hammer. raise the water surface of the stream to create an artificial head. None of these increase the acting head on the water wheel. reduce the effect of water hammer. raise the water surface of the stream to create an artificial head. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Directly proportional to its length. Inversely proportional to square root of its length. Directly proportional to square root of its length. Independent of its length. Directly proportional to its length. Inversely proportional to square root of its length. Directly proportional to square root of its length. Independent of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Kaplan and Pelton turbine. None of these. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. None of these. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operator "a" rotates a vector anti clock wise direction clock wise direction nether 1 nor 2 either 1 or 2 anti clock wise direction clock wise direction nether 1 nor 2 either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Under excited Synchronous phase modifier works as shunt capacitor any of the above shunt reactor series capacitor shunt capacitor any of the above shunt reactor series capacitor ANSWER DOWNLOAD EXAMIANS APP
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