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Consequent pole motors intended to operate with four speeds use ____ windings.


A) two reconnectable
B) three reconnectable
C) two separate
D) three separate

E) B) and C)
F) C) and D)

Correct Answer

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One type of alternating current motor that can use variable voltage for speed control is the ____________________ or AC series motor.

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When a generator produces electrical power, it produces ____ torque.


A) dynamic
B) counter
C) inductive
D) resistive

E) B) and C)
F) A) and D)

Correct Answer

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B

Single-phase motors that use a centrifugal switch to disconnect the start windings cannot be used with variable voltage control. This limits the type of induction motors to capacitor-start capacitor-run and ____ motors.


A) capacitor-stop
B) resistor-stop
C) resistor-start resistor-run
D) shaded-pole

E) None of the above
F) B) and C)

Correct Answer

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D

A direct-current machine can be used as either a motor or generator.

A) True
B) False

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What is one advantage of consequent pole motors over some others types of variable speed alternating current motors?

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Consequent pole motors have an...

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Many small single-phase motors change speed by varying the amount of voltage applied to the motor. This method changes the speed of the rotating magnetic field of the motor.

A) True
B) False

Correct Answer

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A three-phase two-pole motor contains ____ actual poles.


A) two
B) three
C) four
D) six

E) B) and D)
F) None of the above

Correct Answer

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D

Name three methods that can be used to provide braking for a motor.

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There are several methods that...

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The most accurate method of plug stopping a motor is with a ____.


A) stop switch
B) rotating switch
C) zero speed switch
D) resistor

E) C) and D)
F) B) and C)

Correct Answer

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A two-speed motor will contain six T leads in the terminal connection box.

A) True
B) False

Correct Answer

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Give an overview of universal motors.

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Universal motors are commonly used in de...

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There are different methods of obtaining a variable AC voltage. One method is with the use of an autotransformer with a ____ tap.


A) sliding
B) fixed
C) universal
D) resistor

E) C) and D)
F) B) and D)

Correct Answer

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When plugging, as a general rule, the reversing contactor is of a larger size than the forward contactor because of the increased plugging current.

A) True
B) False

Correct Answer

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