Quiz on Power Electronics
tick the correct answer and press submit button
Name of the student *
Roll No *
1.In single pulse modulation of PWM inverters, third harmonic can be eliminated if pulse width is equal to
1 point
2. In multiple pulse modulation used in PWM inverters, the amplitudes of reference square wave and triangular carrier wave are respectively 1V and 2V. For generating 5 pulses per half cycle, the pulse width should be
1 point
3. In a CSI, if frequency of output voltage is f Hz, then frequency of voltage input to CSI is
1 point
4. In an inverter with fundamental output frequency of 50 Hz, if third harmonic is eliminated then frequencies of other components in the output voltage wave, in Hz, would be
1 point
5. A single phase CSI has capacitor C as the load. For a constant source current, the voltage across the capacitor is
1 point
6. A VSI will have better performance if its
1 point
7. Simplest method of eliminating third harmonic from the output voltage waveform of a single phase bridge inverter is to use
1 point
8. A PWM switching scheme is used in single phase inverters to
1 point
9. Output voltage of a single phase bridge inverter, fed from a fixed dc source, is fixed by
1 point
10. A single phase inverter has square wave output voltage. What is the percentage of the fifth harmonic component in relation to the fundamental component?
1 point