Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A rotating magnetic field can be created by using which of the following?
Which of the following electrical devices is most commonly used to start a single-phase motor?
In a two-pole induction motor, the stator flux rotates at 3,600 rpm. Which of the following would be a typical rotor speed for this motor?
Test results
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Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Stator
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Rotor
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Bearings
Q: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
A: Fan
Q: A rotating magnetic field can be created by using which of the following?
A: Alternating current
Q: A rotating magnetic field can be created by using which of the following?
A: Magnets
Q: A rotating magnetic field can be created by using which of the following?
A: Magnetism
Q: A rotating magnetic field can be created by using which of the following?
A: Magnetic flux
Q: Which of the following electrical devices is most commonly used to start a single-phase motor?
A: Resistor
Q: Which of the following electrical devices is most commonly used to start a single-phase motor?
A: Switch
Q: Which of the following electrical devices is most commonly used to start a single-phase motor?
A: Thermostat
Q: Which of the following electrical devices is most commonly used to start a single-phase motor?
A: Capacitor
Q: The slip in an induction motor is greater at no load than it is at full load?
A: True
Q: The slip in an induction motor is greater at no load than it is at full load?
A: False
Q: An induction motor will operate at synchronous speed at full load?
A: True
Q: An induction motor will operate at synchronous speed at full load?
A: False
Q: In a two-pole induction motor, the stator flux rotates at 3,600 rpm. Which of the following would be a typical rotor speed for this motor?
A: 1,800 rpm
Q: In a two-pole induction motor, the stator flux rotates at 3,600 rpm. Which of the following would be a typical rotor speed for this motor?
A: 3,000 rpm
Q: In a two-pole induction motor, the stator flux rotates at 3,600 rpm. Which of the following would be a typical rotor speed for this motor?
A: 3,500 rpm.
Q: In a two-pole induction motor, the stator flux rotates at 3,600 rpm. Which of the following would be a typical rotor speed for this motor?
A: None of the above