Power Systems The most commonly used material for insulators of overhead lines is porcelain PVC mica glass porcelain PVC mica glass ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Power transformer. Current transformer. Instrument transformer. Potential transformer. Power transformer. Current transformer. Instrument transformer. Potential transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Suspension type insulators are used for voltage beyond 11 kV 230 V 440 V 33 kV 11 kV 230 V 440 V 33 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? any of the above RMS and RMS value RMS and Instantaneous value Instantaneous and RMS value any of the above RMS and RMS value RMS and Instantaneous value Instantaneous and RMS value ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is 6 MJ/MVA 15 MJ/MVA 10.5 MJ/MVA 2.5 MJ/MVA 6 MJ/MVA 15 MJ/MVA 10.5 MJ/MVA 2.5 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To collect the dust particles from the flue gases All of these To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean To collect the dust particles from the flue gases All of these To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean ANSWER DOWNLOAD EXAMIANS APP
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