Power Systems On what factor does the performance of a circuit breaker depend? Both A and C. None of these. Critical length of breaking. Breaking speed. Both A and C. None of these. Critical length of breaking. Breaking speed. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Use of high pressure. Reheat of steam an intermediate stages. Use of steam for heating of boiler feed water. All of these Use of high pressure. Reheat of steam an intermediate stages. Use of steam for heating of boiler feed water. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when All of these diameter decrease frequency decrease resistivity decrease All of these diameter decrease frequency decrease resistivity decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sodium graphite reactors use a mixture of sodium and graphite as coolant. sodium as coolant and graphite as moderator. sodium as moderator and graphite as coolant. a mixture of sodium and graphite as moderator. a mixture of sodium and graphite as coolant. sodium as coolant and graphite as moderator. sodium as moderator and graphite as coolant. a mixture of sodium and graphite as moderator. ANSWER DOWNLOAD EXAMIANS APP
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