Power Systems Maximum power capacity of a transmission line can be increased by increasing voltage level decreasing reactance value nether 1 nor 2 either 1 or 2 increasing voltage level decreasing reactance value nether 1 nor 2 either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is true? Corona loss increases with decrease in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero if the shunt admittances at the buses are ignored always if the mutual couplings between transmission lines are absent if both 2 and 3 are satisfied if the shunt admittances at the buses are ignored always if the mutual couplings between transmission lines are absent if both 2 and 3 are satisfied ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a pressurized water reactor heavy water is used as both coolant and moderator. water is used at high pressure so that it is available is liquid from at about 280° C. both B and C. the coolant water boils in the reactor core. heavy water is used as both coolant and moderator. water is used at high pressure so that it is available is liquid from at about 280° C. both B and C. the coolant water boils in the reactor core. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? distance relays offset mho relay reverse power relay impedance relay distance relays offset mho relay reverse power relay impedance relay ANSWER DOWNLOAD EXAMIANS APP
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