Exam 22: Motor Control Circuits

Why could it be a problem to start a motor in fast speed mode?

The type of control that will restart of a motor automatically when power is restored after a power failure is a ____.

Jogging is a type of motor control in which the motor may be ____________________ slightly.

____________________ is a method of braking a motor where the motor is brought to a rapid stop by forcing it to rotate in the opposite direction from the direction in which it was running.

A jog switch applies power to the motor as long as the switch is ____.

Which of the following is not a starting method?

A thermostat is which type of control?

___________________ starting circuits are used for motors connected directly across the power lines, providing full voltage and current to the motor.

A drum switch is a mechanically held device that allows the _____________________ of rotation of a motor to be changed.

Dynamic braking involves the motor ____.

Depressing the stop pushbutton in a forward/reverse circuit causes the motor to ____.

With a three-wire control system, the motor would not re-start in the event of a power interruption.

Three-wire controls need four wires to connect the control device into the circuit.

What type of control allows a circuit to function under the control of either an automatic device or manually?

A motor may be controlled manually by a ____.