Category: Rectifiers and Converters

A. Battery charging work
B. Arc welding
C. Electrolytic and electro-chemical processes
D. Arc lamps for search lights
E. All of the above

A. anode
B. cathode
C. shell bottom
D. mercury pool

A. an induction motor and a D.C. generator
B. a synchronous motor and a D.C. generator
C. a D.C. series motor and a D.C. generator
D. none of the above

A. Motor generator set
B. Motor converter
C. Rotary converter
D. Any of the above
E. None of the above

A. 10°C
B. 20°C
C. 30°C
D. 45°C

A. an induction motor
B. a synchronous motor
C. a D.C. series motor
D. a D.C. shunt motor

A. resistance
B. capacitance
C. leakage reactance
D. any of the above

A. one-third of a cycle
B. one-fourth of a cycle
C. one-half a cycle
D. two-third of a cycle

A. 5 to 10 per cent
B. 15 to 20 per cent
C. 25 to 30 per cent
D. none of the above

A. Mechanical rectifiers
B. Copper oxide rectifiers
C. Selenium rectifiers
D. Electrolytic rectifiers
E. Mercury arc rectifiers