A. Negatively affected by firing angle
B. Negatively affected by distortion of the input current
C. Positively affected by both firing angle and distortion of the input current
D. Both (a) and (b)
Related Mcqs:
- The input current waveform of a bridge controlled rectifier when the load is perfectly filtered is___________?
A. Sine wave
B. Square wave
C. Saw – tooth wave
D. Trapezoidal wave - The ac output voltage waveform of VSI and AC output current waveform of CSI respectively is composed of___________?
A. High dv / dt, low di / dt
B. Low dv / dt, low di / dt
C. Low dv / dt, high di / dt
D. High dv / dt, high di / dt - In EMC signal, the source delivers maximum power to the input of transmission line when the transmission line input impedance
A. Is equal to the source resistance
B. Greater than the source resistance
C. Smaller than the source resistance
D. None of these - Form factor of a rectifier is the ratio of ______________?
A. Root mean square value of voltage and current to its peak value
B. Root mean square value of voltage and current to its average value
C. Average value of current and voltage to its root mean square value
D. Peak value of current and voltage to its root mean square value - Transformer utilization factor is a measure of the merit of a rectifier circuit. It is the ratio of_______________?
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 - For power output higher than 15 kW, the suitable rectifier is________________?
A. Single phase
B. 3 phase
C. Poly phase
D. Only (b) and (c) - In constant frequency PWM, at perturbation the amplitude of the sinusoidal component is a___________?
A. Linear function
B. Non linear function
C. Constant function
D. None of these - In a full wave rectifier, the rectification ratio is approximately equal to____________?
A. 61%
B. 71%
C. 81%
D. 91% - A full wave rectifier with resistive load produces___________?
A. Second harmonic
B. Third harmonic
C. Fifth harmonic
D. Do not produce harmonics - In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes__________________?
A. Positive
B. Negative
C. Zero
D. None of these
