Power Systems Condition for zero voltage regulation is tanφ = R/X tanφ = X/R cosφ = R/X cosφ = X/R tanφ = R/X tanφ = X/R cosφ = R/X cosφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? string insulator pin insulator strain insulator All of these string insulator pin insulator strain insulator All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays 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 always if both 2 and 3 are satisfied if the shunt admittances at the buses are ignored if the mutual couplings between transmission lines are absent always if both 2 and 3 are satisfied if the shunt admittances at the buses are ignored if the mutual couplings between transmission lines are absent ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is used for changing power factor from leading to lagging series capacitor shunt capacitor any of the above shunt reactor series capacitor shunt capacitor any of the above shunt reactor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required to spiliting of a heavy nucleus. none of above. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. none of above. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. ANSWER DOWNLOAD EXAMIANS APP
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