Power Systems Which of following power plants normally operage at high speeds Diesel engine. Hydro electric. Thermal. Petrol engine. Diesel engine. Hydro electric. Thermal. Petrol engine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the firm capacity of plant is increased. pressure inside the turbine casing remains. kinetic energy of the running water is fully utilized. operating head is controlled. firm capacity of plant is increased. pressure inside the turbine casing remains. kinetic energy of the running water is fully utilized. operating head is controlled. 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 = 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 PG1 = 250 MW and PG2 = 0 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 175, 125 150, 150 200, 100 100, 200 175, 125 150, 150 200, 100 100, 200 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following produces the radio interference in communication lines? both 1 and 2 electro magnetic induction None of these electro static induction both 1 and 2 electro magnetic induction None of these electro static induction ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is zero. one - third of maximum. two - thirds of maximum. one - third of minimum. zero. one - third of maximum. two - thirds of maximum. one - third of minimum. ANSWER DOWNLOAD EXAMIANS APP
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