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 A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Condenser. Cooling tower. Ash handling unit. Pulversing unit. Condenser. Cooling tower. Ash handling unit. Pulversing unit. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Offset mho relay is used for the protection of equipment when either 1 or 2 failure of prime mover of the generator loss of excitation of the generator None of these either 1 or 2 failure of prime mover of the generator loss of excitation of the generator None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 2.044 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. 2.044 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? High ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity Low ratio of puncture strength to flash over. High ratio of puncture strength to flash over. Both 1 and 2 High relative permittivity Low ratio of puncture strength to flash over. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 200 A 100 A 2500 A 250 A 200 A 100 A 2500 A 250 A ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS