Question 1 of 6
Intermediate

Which of the following electrical devices is most commonly used to start a single-phase motor?

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

The stator magnetic field in a single-phase motor does not rotate?

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

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

Question 6 of 6
Intermediate

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

Question 6 of 6
Intermediate

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1: Which of the following electrical devices is most commonly used to start a single-phase motor?
Resistor
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1: Which of the following electrical devices is most commonly used to start a single-phase motor?
Switch
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1: Which of the following electrical devices is most commonly used to start a single-phase motor?
Thermostat
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1: Which of the following electrical devices is most commonly used to start a single-phase motor?
Capacitor
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
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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
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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
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3: The stator magnetic field in a single-phase motor does not rotate?
True
3: The stator magnetic field in a single-phase motor does not rotate?
False
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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: An induction motor will operate at synchronous speed at full load?
True
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5: An induction motor will operate at synchronous speed at full load?
False
6: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
45 degrees
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6: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
90 degrees
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6: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
180 degrees
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6: How far apart are the phase windings (electrical degrees) in a three-phase induction motor?
120 degrees