Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three two six one three two six one ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for zero voltage regulation is tanφ = X/R tanφ = R/X cosφ = X/R cosφ = R/X tanφ = X/R tanφ = R/X cosφ = X/R cosφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operating cost of thermal power station is less than that of hydroelectric power plant. less than that of diesel power plant. less than that of nuclear power plant. is the same as that of nuclear power plant. less than that of hydroelectric power plant. less than that of diesel power plant. less than that of nuclear power plant. is the same as that of nuclear power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? skin effect switching over voltage lighting voltage radio interference skin effect switching over voltage lighting voltage radio interference ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance 2Xs + Xm Xs +2 Xm Xm - Xs Xs - Xm 2Xs + Xm Xs +2 Xm Xm - Xs Xs - Xm ANSWER DOWNLOAD EXAMIANS APP
Power Systems An impulse turbine always operates submerged. operates by initial complete conversion to kinetic energy. makes use of a draft tube. is most suited for low head and high discharge power plants. always operates submerged. operates by initial complete conversion to kinetic energy. makes use of a draft tube. is most suited for low head and high discharge power plants. ANSWER DOWNLOAD EXAMIANS APP
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