Power Systems Most commonly used material for insulator is porcelain All of these glass mica porcelain All of these glass mica ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relationships are not valid for short transmission lines Is = Ir All of these B = C = Z A = D = 1 Is = Ir All of these B = C = Z A = D = 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in underground cable All of these overhead transmission lines communication lines underground cable All of these overhead transmission lines communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems The only place where slip ring induction motors used in thermal power plants is lubrication oil pumps. conveyors. none of above. coal handling plant. lubrication oil pumps. conveyors. none of above. coal handling plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems On what factor does the performance of a circuit breaker depend? None of these. Breaking speed. Critical length of breaking. Both A and C. None of these. Breaking speed. Critical length of breaking. Both A and C. ANSWER DOWNLOAD EXAMIANS APP
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