Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent 25 to 30 per cent 15 to 20 per cent None of the listed here 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a phase-shift control method, the phase shift between anode and grid voltages can be achieved by means of Shunt motor Synchronous generator Synchronous motor Induction regulator Shunt motor Synchronous generator Synchronous motor Induction regulator ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 75°C 55°C 45°C 30°C 75°C 55°C 45°C 30°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A rotary converter is a single machine with one armature and one field two armatures and one field one armature and two fields none of the listed here one armature and one field two armatures and one field one armature and two fields none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A synchronous converter can be started by means of a small auxiliary motor All of the listed here from D.C. side as D.C. motor from A.C. side as induction motor by means of a small auxiliary motor All of the listed here from D.C. side as D.C. motor from A.C. side as induction motor ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Mercury, in arc rectifiers, is chosen for cathode because Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high Its ionization potential is relatively low All of the listed here Its boiling point and specific heat are low Its atomic weight is quite high ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS