Power Systems Mho relay is used for protection of long lines. none of these. short lines. medium lines. long lines. none of these. short lines. medium lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The only place where slip ring induction motors used in thermal power plants is none of above. coal handling plant. conveyors. lubrication oil pumps. none of above. coal handling plant. conveyors. lubrication oil pumps. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? Fast Decoupled Load Flow (FDLF) method All of these Gauss-Siedel (GS) method Newton Raphson (NR) method Fast Decoupled Load Flow (FDLF) method All of these Gauss-Siedel (GS) method Newton Raphson (NR) method ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants both operating and initial cost are low. operating cost is high and initial cost is low. both operating and initial cost are high. operating cost is low and initial cost is high. both operating and initial cost are low. operating cost is high and initial cost is low. both operating and initial cost are high. operating cost is low and initial cost is high. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation Z1 = Z2 = Z0 (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 any of the above Z1 = Z2 = Z0 (Z1 = Z2) > Z0 (Z1 = Z2) < Z0 any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 6 pu 2 pu 5 pu 2.67 pu 6 pu 2 pu 5 pu 2.67 pu ANSWER DOWNLOAD EXAMIANS APP