

Understanding Variable Frequency Drives (VFDs)
Interactive Video
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Science, Computers, Professional Development
•
9th - 12th Grade
•
Practice Problem
•
Medium
Olivia Brooks
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does VFD stand for?
Variable Frequency Device
Variable Frequency Drive
Voltage Frequency Drive
Voltage Frequency Device
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a VFD?
To convert DC to AC
To control the speed of an AC motor
To increase the voltage of a motor
To provide backup power
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a VFD adjust the speed of a motor?
By altering the motor's frequency
By adjusting the motor's resistance
By modifying the motor's current
By changing the motor's voltage
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What component in a VFD acts like a check valve in a plumbing system?
Diode
Resistor
Capacitor
Transistor
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the plumbing analogy, what does the capacitor represent?
A water pipe
A water tank
A water filter
A water pump
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common industrial use of VFDs?
Controlling the speed of a conveyor belt
Heating a furnace
Regulating water flow in a treatment plant
Powering a backup generator
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can VFDs be controlled automatically?
By adjusting the power supply
Using a manual switch
Through a PLC
With a remote control
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