Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 3.535 pu 7 pu 5 pu 5.353 pu 3.535 pu 7 pu 5 pu 5.353 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Rankine cycle efficiency of a steam power plant is of 30 - 45 %. 20 - 30 %. 45 - 80 %. 60 - 80 %. 30 - 45 %. 20 - 30 %. 45 - 80 %. 60 - 80 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is n×n (n-2)×(n-2) (n-1)×(n-2) (n-1)×(n-1) n×n (n-2)×(n-2) (n-1)×(n-2) (n-1)×(n-1) ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will reduce the heat both 2 and 3 increase the thermal efficiency reduce the thermal efficiency reduce the heat both 2 and 3 increase the thermal efficiency reduce the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Nuclear reactors usually employ none of above. fusion. both of A and B. fission. none of above. fusion. both of A and B. fission. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Water hamming process in pen-stocks results in pressure increases. noise increases. noise increases, pressure increases, velocity decreases. None of these pressure increases. noise increases. noise increases, pressure increases, velocity decreases. None of these ANSWER DOWNLOAD EXAMIANS APP
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