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Question 1 of 6
Intermediate
Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
Question 2 of 6
Intermediate
The slip in an induction motor is greater at no load than it is at full load?
Question 3 of 6
Intermediate
A rotating magnetic field can be created by using which of the following?
Question 4 of 6
Intermediate
Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
Question 5 of 6
Intermediate
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?
Question 6 of 6
Intermediate
Which of the following single-phase motors offers the lowest starting torque?
Question 6 of 6
Intermediate
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1: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
1: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
Rotor
1: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
Bearings
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1: Permanent magnet synchronous motors are more efficient than induction motors due to a change in which major motor component?
2: The slip in an induction motor is greater at no load than it is at full load?
2: The slip in an induction motor is greater at no load than it is at full load?
False
3: A rotating magnetic field can be created by using which of the following?
Alternating current
3: A rotating magnetic field can be created by using which of the following?
Magnets
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3: A rotating magnetic field can be created by using which of the following?
Magnetism
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3: A rotating magnetic field can be created by using which of the following?
Magnetic flux
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4: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
1,200 rpm
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4: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
1,800 rpm
4: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
3,000 rpm
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4: Which of the following is the synchronous speed for a four-pole 60Hz induction motor?
3,600 rpm
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5: 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?
1,800 rpm
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5: 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?
3,000 rpm
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5: 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?
3,500 rpm.
5: 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?
None of the above
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6: Which of the following single-phase motors offers the lowest starting torque?
Capacitor start/Induction run (CSIR)
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6: Which of the following single-phase motors offers the lowest starting torque?
Capacitor start/Capacitor run (CSCR)
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6: Which of the following single-phase motors offers the lowest starting torque?
Resistance start/Induction run (RSIR)
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6: Which of the following single-phase motors offers the lowest starting torque?
Permanent-split capacitor (PSC)