True/False
Indicate whether the
statement is true or false.
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1.
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In order to produce a rotating magnetic field, there must be more than one
phase.
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2.
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Centrifugal switches can be used on all types of split phase motors.
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3.
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The hot-wire relay functions as both a starting relay and an overload
relay.
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4.
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Multiple speeds are obtained by connecting inductance in parallel with the main
run winding.
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5.
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Shaded pole motors are used in applications where it is necessary to reverse the
direction of rotation of the motor.
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Completion
Complete each
statement.
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6.
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Split phase motors operate on the principle of a rotating
____________________.
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7.
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In split phase motors, the centrifugal switch is operated by springloaded
____________________.
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8.
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The potential starting relay is used with the capacitor start capacitor run or
____________________ capacitor motor.
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9.
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The solid-state relay uses a solid-state component called a(n)
____________________.
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10.
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Motors that change speed by changing the number of stator poles are called
____________________ motors.
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Short Answer
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11.
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In order to split one phase into two, split phase motors contain two separate
windings. What are they and how are they connected to each other?
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12.
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What are the three types of split phase motors?
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13.
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What does it mean if a thermistor has a positive coefficient of
resistance?
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14.
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How can the direction of rotation of a split phase motor be reversed?
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15.
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What are the two factors which determine the speed of a rotating magnetic
field?
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