Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 24. 6. 12. 16. 24. 6. 12. 16. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of gauss siedel method is/are number of iterations are less All of these calculation time for each iteration is less applicable for large power system network number of iterations are less All of these calculation time for each iteration is less applicable for large power system network ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of the modern EHV lines is designed based on the switch voltage. corona. the lighting voltage. R × I. the switch voltage. corona. the lighting voltage. R × I. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? flat tie line control All of these parallel frequency flat frequency control flat tie line control All of these parallel frequency flat frequency control ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.92 -0.56 0.92 0.56 -0.92 -0.56 0.92 0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following are the fertile materials U238 and Th232. U238 and Pu239. U238 and Th239. U233 and Pu239. U238 and Th232. U238 and Pu239. U238 and Th239. U233 and Pu239. ANSWER DOWNLOAD EXAMIANS APP