Rectifiers and Converters In phase-shift control method the control is carried out by varying the of grid voltage. magnitude All of the listed here polarity phase magnitude All of the listed here polarity phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor A D.C. series motor A D.C. shunt motor A synchronous motor An induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 15 to 20 per cent None of the listed here 25 to 30 per cent 5 to 10 per cent 15 to 20 per cent None of the listed here 25 to 30 per cent 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A mercury arc rectifier possesses ________ regulation characteristics exponential curved line none of the listed here straight line exponential curved line none of the listed here straight line ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The advantage of mercury arc rectifier is that it has high efficiency it is comparatively noiseless it is light in weight and occupies small floor space All of the listed here it has high efficiency it is comparatively noiseless it is light in weight and occupies small floor space All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters With a motor converter it is possible to obtain D.C. voltage only upto 1000-1200 V 200-100 V 1700-2000 V 600-800 V 1000-1200 V 200-100 V 1700-2000 V 600-800 V ANSWER DOWNLOAD EXAMIANS APP
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