A. DIAC conducts in forward direction and TRIAC conducts in reverse direction
B. Both conducts in forward direction
C. Both conducts in reverse direction
D. Both conducts in either direction

A. Current transformer
B. Potential transformer
C. Power transformer
D. SCR

A. Linear function
B. Non linear function
C. Constant function
D. None of these

A. A rectifier
B. An inverter
C. A chopper
D. A regulator

A. Phase lead helps to increase the phase margin of the control loop
B. Phase lag helps to increase the phase margin of the control loop
C. Phase lead helps to decrease the phase margin of the control loop
D. Phase lag helps to decrease the phase margin of the control loop

A. Positive
B. Negative
C. Zero
D. None of these

A. AC input power to the transformer volt – amp rating required by secondary
B. AC input power to the transformer volt – amp rating required by primary
C. DC output power to the transformer volt – amp rating required by secondary
D. DC output power to the transformer volt – amp rating required by primary

A. A switching pulse generator and a shorting pulse generator
B. A shorting pulse distributor
C. A switching and shorting pulse combination
D. All of these

A. 60 degree
B. 90 degree
C. 120 degree
D. 150 degree

A. Rms value of the ac component of load voltage to the dc voltage
B. Average value of the ac component of load voltage to the peak value of voltage
C. Average value of the dc component of load voltage to the ac voltage
D. Peak value of the dc component of load voltage to the ac voltage