Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? 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 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 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Offset mho relay is used for the protection of equipment when loss of excitation of the generator either 1 or 2 failure of prime mover of the generator None of these loss of excitation of the generator either 1 or 2 failure of prime mover of the generator None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, interference increases power loss increases charging current increases All of these interference increases power loss increases charging current increases All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? None of these either 1 or 2 Power line Both power and telecommunication lines None of these either 1 or 2 Power line Both power and telecommunication lines 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. 5. 10. un changed. 1. 5. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR decreases remains unaffected increases None of these decreases remains unaffected increases None of these ANSWER DOWNLOAD EXAMIANS APP
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