
DC to AC converter (Inverter)
Quiz
•
Engineering
•
University
•
Practice Problem
•
Easy
NORULAZMAWATI BINTI ISMAIL (POLIPD)
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48 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is an inverter?
A device which converts AC power to DC power
A device which converts DC power to AC power
A device which stores electrical energy
A device which measures voltage
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fill in the blank: The output voltage waveform of the inverter can be ________, quasi-square wave, or low distorted sine wave.
square-wave
triangular wave
sawtooth wave
rectified wave
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fill in the blank: One of the applications in industry is ________ AC drives.
Adjustable
Constant
Fixed
Manual
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fill in the blank: UPS stands for Uninterruptible Power Supply and is used in appliances like ________.
computers
refrigerators
televisions
washing machines
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following semiconductor devices are widely used as switching?
Thyristor, BJT, GTO, IGBT, MOSFET
Diode, Resistor, Capacitor
Transformer, Inductor, Relay
None of the above
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The output voltage in inverters for low to medium power applications is controlled using the ______ technique.
pulse width-modulation (PWM)
phase-shift modulation
frequency modulation
amplitude modulation
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When a thyristor based inverter supplies an AC power to an isolated load, ______ techniques are required.
force commutation
natural commutation
resonant commutation
pulse width modulation
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