Power Systems The most commonly used material for insulators of overhead lines is mica glass porcelain PVC mica glass porcelain PVC ANSWER DOWNLOAD EXAMIANS APP
Power Systems In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is un changed. 1. 10. 5. un changed. 1. 10. 5. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear chain fission reaction each neutron causing fission produces at least one new neutron. less than one new neutron. no new neutron. one new neutron. at least one new neutron. less than one new neutron. no new neutron. one new neutron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? All of these To collect the dust particles from the flue gases To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard All of these To collect the dust particles from the flue gases To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are most economical as a peak load supply plant All of these operating time is minimum used as load frequency control most economical as a peak load supply plant All of these operating time is minimum used as load frequency control ANSWER DOWNLOAD EXAMIANS APP
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