Rectifiers and Converters In which of the following equipment direct current is needed? Relay Time switches All of the listed here Telephones Relay Time switches All of the listed here Telephones ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following are the applications of D.C. system? Electrolytic and electro-chemical processes All of the listed here Arc welding Battery charging work Electrolytic and electro-chemical processes All of the listed here Arc welding Battery charging work ANSWER DOWNLOAD EXAMIANS APP
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 The cathdde voltage drop, in a mercury arc rectifier, is due to expenditure of energy in overcoming the electrostatic field surface resistance expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization expenditure of energy in overcoming the electrostatic field surface resistance expenditure of energy in liberating electrons from the mercury expenditure of energy in ionization ANSWER DOWNLOAD EXAMIANS APP
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 phase polarity magnitude All of the listed here phase polarity ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters A commutating rectifier consists of commutator driven by A D.C. shunt motor An induction motor A synchronous motor A D.C. series motor A D.C. shunt motor An induction motor A synchronous motor A D.C. series motor ANSWER DOWNLOAD EXAMIANS APP