Power Systems The skin effect of conductor will increase when diameter decrease frequency decrease resistivity decrease All of these diameter decrease frequency decrease resistivity decrease All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is 400 MW 1600 MW 200 MW 800 MW 400 MW 1600 MW 200 MW 800 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A lossless power system has to serve a load of 250 MW. There are two generators(G1 and G2) in the system with cost curves C1 and C2 respectively defined as follows: C1 = PG1+0.055P²G1 C2 = 3 PG2 + 0.03 P²G2 Where PG1 and PG2 are the MW injections from generators G1 and G2 respectively. Thus, the minimum cost dispatch will be PG1 = 250 MW and PG2 = 0 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 150 MW and PG2 = 100 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speed of water turbine is the speed at which the turbine develops maximum horse power. a minimum horse power. unit horse power at all heads. unit horse power at unit head. maximum horse power. a minimum horse power. unit horse power at all heads. unit horse power at unit head. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Telecommunication lines are transposed to reduce the efficiency All of these radio interference in communication lines voltage level efficiency All of these radio interference in communication lines voltage level ANSWER DOWNLOAD EXAMIANS APP
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