PEC-II Quiz-1

Inverter is converting

• AC to DC

• DC to AC

• DC to DC

• AC to AC

The average value of square wave haveing +/- A peak value is ____

• 0

• A

• 2*A

• A^2

Half bridge inverter is using two numbers of

• IGBT

• CAPACITOR

• INDUCTOR

• RESISTOR

1-phase full bridge inverter uses ___ switches.

• 2

• 4

• 6

• 8

PWM is used for ______

• Increasing efficiency

• Increasing power quality

• Increasing or decreasing output frequency

• increasing or decreasing voltage output

Full form of THD is

• Thresold Harmonic Distortion

• Total Harmonic displacement

• Total Harmonic Distortion

• None.

Sine wave is following property.

• Half wave symmetry

• Quarter wave symmetry

• Even symmetry

• Odd symmetry

THD of square wave is approximately ___ %

• 34

• 43

• 63

• 73

Full form of SPWM is ___

• Sine PWM

• Square PWM

• Single PWM

• Strong PWM

Which of the following switch is more suitable for inverter ?

• SCR

• TRIAC

• IGBT

• NONE.