Ch 8

Single-phase, 120V/240V power has four conductors, with a potential of 240V between conductors A and B.

• T

• F

A single-phase motor does not have a method to create a rotating magnetic field.

• T

• F

The rotor of a single-phase motor is the same as in an induction squirrel-cage motor.

• T

• F

In order to start automatically, some single-phase motors use a capacitor winding.

• T

• F

The purpose in making motors for two voltages is to enable the same motor to be used with different power line voltages.

• T

• F

To reverse the direction of most single-phase motors, all that is necessary is to switch the two start leads in the circuit.

• T

• F

A shaded-pole motor is an AC motor that uses a shaded stator pole for starting.

• T

• F

In a typical two-speed, split-phase motor, one run winding and two start windings are used to devolop two separate speeds.

• T

• F

Typical applications of capacitor motors include refrigerators, air conditioners, air compressors, and some power tools.

• T

• F

The capacitors used to start motors are electrolytic capacitors.

• T

• F