ThatQuiz
|
Test Library
|
Take this test now
Thomas Johnston
  • 1. Where was Thomas Johnston born?
A) India
B) United States
C) Scotland
D) Australia
  • 2. What type of energy is typically associated with electric motors?
A) Solar energy
B) Wind energy
C) Nuclear energy
D) Electrical energy
  • 3. What material is traditionally used to create the coils in an electric motor?
A) Silver
B) Aluminum
C) Steel
D) Copper
  • 4. What is the role of the commutator in an electric motor?
A) Generates electricity
B) Stores energy
C) Regulates motor speed
D) Reverses the direction of current
  • 5. Which physical principle is fundamental to the operation of an electric motor?
A) Kinetic energy
B) Quantum mechanics
C) Electromagnetism
D) Thermodynamics
  • 6. In which industry are electric motors commonly used for automation and control systems?
A) Construction
B) Manufacturing
C) Healthcare
D) Agriculture
  • 7. What role do capacitors play in some electric motors?
A) Suppress electromagnetic interference
B) Regulate voltage
C) Improve power factor
D) Store kinetic energy
  • 8. What do VFDs (Variable Frequency Drives) do in relation to electric motors?
A) Stabilize electrical current
B) Adjust wire gauge
C) Change motor size
D) Control motor speed and torque
  • 9. What is a common issue that can occur with electric motors due to prolonged use?
A) Short-circuiting
B) Underpowering
C) Overheating
D) Overspeeding
Created with That Quiz — where a math practice test is always one click away.