A. A rectifier
B. An inverter
C. A chopper
D. A regulator
A. Diac
B. Triac
C. Silicon controlled-rectifier SCR
D. None of above
A. Linear function
B. Non linear function
C. Constant function
D. None of these
A. It will rotate at the same speed as that with its field winding closed
B. It will rotate at less speed as that with its field winding closed
C. It will rotate at dangerously high speed
D. None of these
A. Two SCR’s in parallel opposition
B. Two SCR’s in series
C. Three SCR’s in series
D. Four SCR’s in series
A. Only at turn – on
B. Only at turn – off
C. Both at turn on and off
D. None of these
A. Does not contains second harmonic
B. Does not contains third harmonic
C. Does not contains fifth harmonic
D. Does not contains seventh harmonic