CH 29 QUIZ 130 CA

Split phase motors intended to operate in the open use a ______ switch connected to the shaft of the rotor. a. centrifugal b. three phase c. split d. magnetic

a. centrifugal

Which of the following is NOT one of the three types of split phase motors? a. Capacitor start induction run b. Resistance-start resistance-run c. Resistance start induction run d. Capacitor-start capacitor-run

b. Resistance-start resistance-run

Which of the following is TRUE of single phase motors? a. They are large horsepower motors. b. They are small horsepower motors. c. They can be either small horsepower or large horsepower motors. d. They are somewhere in between small horsepower and large horsepower motors.

b. They are small horsepower motors.

Motors that change speed by changing the number of stator poles are called ______. a. stator pole motors b. consequent pole motors c. pole changing motors d. stator changing motors

b. consequent pole motors

All three types of split phase motors operate very similarly to ______. a. single phase motors b. two phase motors c. three phase motors d. four phase motors

b. two phase motors

Single phase motors operate on either ______ or ______ volts. a. 110, 220 b. 240, 480 c. 120, 240 d. 480, 960

c. 120, 240

Which of the following is TRUE of the hot-wire relay? a. It functions as only an overload relay. b. It functions as only a starting relay. c. It functions as both a starting relay and an overload relay. d. It functions as neither a starting relay nor an overload relay.

c. It functions as both a starting relay and an overload relay.

Almost all single phase motors are intended to be started ______. a. in three phases b. out-of-sequence c. across-the-line d. in random order

c. across-the-line

The most prevalent type of single phase motor that may require different starting methods is the ______ motor. a. centrifugal phase b. three phase c. split phase d. single phase

c. split phase

Why is the most common method to reverse the direction of rotation of a split phase motor to reverse the start winding? a. Because this interferes with the run-winding connection of a dual voltage motor. b. Because this does not interfere with the transformer of a dual voltage motor. c. Because this interferes with the transformer of a dual voltage motor. d. Because this does not interfere with the run-winding connection of a dual voltage motor.

d. Because this does not interfere with the run-winding connection of a dual voltage motor.