A ____ switch is one that must be actuated to provide power to a circuit.
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On a capacitor-start, induction-run motor, a centrifugal swi…
On a capacitor-start, induction-run motor, a centrifugal switch or relay disconnects ____ when the motor reaches about 75% of its rated speed.
Slip is the difference between a motor’s synchronous speed a…
Slip is the difference between a motor’s synchronous speed and its rated ____ speed.
Advantages of ECMs include the following, except ____.
Advantages of ECMs include the following, except ____.
To reverse a three-phase motor’s direction of rotation, a te…
To reverse a three-phase motor’s direction of rotation, a technician must disconnect two power leads and connect each one to the ____.
Which type of single-phase induction motor has the starting…
Which type of single-phase induction motor has the starting torque to start under heavy loads?
A VFD controls an induction motor’s speed by changing ____.
A VFD controls an induction motor’s speed by changing ____.
Capacitors are used to generate higher starting ____ because…
Capacitors are used to generate higher starting ____ because they cause larger phase displacement between the start and run windings.
As the voltage level decreases in a shaded-pole motor’s fiel…
As the voltage level decreases in a shaded-pole motor’s field windings, the electromagnetic field becomes centered over the ____.
Which of the following is a type of implied trust?
Which of the following is a type of implied trust?