Electric Motors
Interactive Video
•
Science
•
7th Grade
•
Practice Problem
•
Medium
Mrs. Beck
Used 6+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the star configuration affect the voltage across each coil in an induction motor?
Increases the voltage to 400 volts
Keeps the voltage constant at 400 volts
Has no effect on the voltage
Reduces the voltage to 230 volts
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the shaft in an induction motor?
To connect and drive mechanical components like pumps
To generate electrical energy
To cool the motor
To support the stator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the fan play in an induction motor?
Transfers mechanical energy
Cools the motor by blowing air over the casing
Supports the rotor
Generates electricity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are the rotor bars in a squirrel cage motor often skewed?
To distribute the magnetic field evenly
To reduce the efficiency of the motor
To increase electrical resistance
To improve the motor's aesthetic appearance
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a delta configuration in an induction motor?
To reduce the motor's power consumption
To simplify the motor's design
To allow electricity to flow between phases as electrons reverse direction
To decrease the voltage across each coil
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