Question 1 of 6
Intermediate

Which of the following single-phase motors offers the lowest starting torque?

Question 2 of 6
Intermediate

When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?

Question 3 of 6
Intermediate

How far apart are the phase windings (electrical degrees) in a three-phase induction motor?

Question 4 of 6
Intermediate

You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?

Question 5 of 6
Intermediate

An induction motor will operate at synchronous speed at full load?

Question 6 of 6
Intermediate

How can the magnetic field around an electrical conductor be strengthened?

Question 6 of 6
Intermediate

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 106L - Electromagnetic Motors
Sorry. You did not pass the 106L - Electromagnetic Motors test this time
Achieved badges:
How would you rate this course?
1: Which of the following single-phase motors offers the lowest starting torque?
Capacitor start/Induction run (CSIR)
You can find the answer here >
1: Which of the following single-phase motors offers the lowest starting torque?
Capacitor start/Capacitor run (CSCR)
You can find the answer here >
1: Which of the following single-phase motors offers the lowest starting torque?
Resistance start/Induction run (RSIR)
You can find the answer here >
1: Which of the following single-phase motors offers the lowest starting torque?
Permanent-split capacitor (PSC)
2: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
Magnetism
You can find the answer here >
2: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
Electromagnetism
You can find the answer here >
2: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
Induction
2: When power is applied to the stator, an expanding magnetic field is created that cuts across the rotor conductor bars and induces current in the rotor. This is the basic principle of which of the following?
Flux density
You can find the answer here >
3: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
45 degrees
You can find the answer here >
3: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
90 degrees
You can find the answer here >
3: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
180 degrees
You can find the answer here >
3: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
120 degrees
4: You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?
True
4: You can typically increase motor efficiency by 5% by using a permanent magnet synchronous motor instead of an induction motor?
False
You can find the answer here >
5: An induction motor will operate at synchronous speed at full load?
True
You can find the answer here >
5: An induction motor will operate at synchronous speed at full load?
False
6: How can the magnetic field around an electrical conductor be strengthened?
Reduce the voltage
You can find the answer here >
6: How can the magnetic field around an electrical conductor be strengthened?
Wind it into a coil around an iron core
6: How can the magnetic field around an electrical conductor be strengthened?
Add more poles
You can find the answer here >
6: How can the magnetic field around an electrical conductor be strengthened?
None of the above
You can find the answer here >