Power Systems IF the time of operation of a relay for unity TMS is 10 sec then the time of operation for 0.5 TMS is 5 sec. 10 sec. 20 sec. none of these. 5 sec. 10 sec. 20 sec. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Directly proportional to square root of its length. Independent of its length. Directly proportional to its length. Inversely proportional to square root of its length. Directly proportional to square root of its length. Independent of its length. Directly proportional to its length. Inversely proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conductor carries more current on surface as compared to core. This is called as All of these unsymmetrical fault skin effect corona effect All of these unsymmetrical fault skin effect corona effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear power plants which material is/are used as coolant? liquid sodium All of these beryllium graphite liquid sodium All of these beryllium graphite 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 = 150 MW and PG2 = 100 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 100 MW and PG2 = 150 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine Pelton turbine. None of above. Kaplan turbine. Francis turbine. Pelton turbine. None of above. Kaplan turbine. Francis turbine. ANSWER DOWNLOAD EXAMIANS APP
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