Rectifiers and Converters In a rotary converter armature currents are partly a.c. and partly d.c. a.c. only d.c. only None of the listed here partly a.c. and partly d.c. a.c. only d.c. only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as non of the listed here critical grid voltage maximum grid voltage all of the listed here non of the listed here critical grid voltage maximum grid voltage all of the listed here 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 Synchronous motor Synchronous generator Shunt motor Induction regulator Synchronous motor Synchronous generator Shunt motor Induction regulator ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode. none of the listed here accelerates any of the listed here decelerates none of the listed here accelerates any of the listed here decelerates ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Selenium rectifier can be operated at temperatures as high as 75°C 25°C 60°C 40°C 75°C 25°C 60°C 40°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters The metal rectifiers are preferred to valve rectifiers due to which of the following advantages ? They do not require any voltage for filament heating None of the listed here Both of the listed here They are mechanically strong They do not require any voltage for filament heating None of the listed here Both of the listed here They are mechanically strong ANSWER DOWNLOAD EXAMIANS APP
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