Power Systems What is the approximate efficiency of a normal thermal power station? 45-55% 60-70% 30-40% 20-25% 45-55% 60-70% 30-40% 20-25% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will remains unaffected increases None of these decreases remains unaffected increases None of these decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 28 Ω 40 Ω 52 Ω 33 Ω 28 Ω 40 Ω 52 Ω 33 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operator "a" rotates a vector 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 anti clock wise direction ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. None of above 56 %. 28 %. 14 %. None of above 56 %. 28 %. 14 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Independent of its length. Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to square root of its length. Directly proportional to its length. Inversely proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
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