Unit 5 - D.C. & A.C. Motors (2)

Identify the slip rings in the figure here:

• A

• B

• C

• D

Identify the armature in the figure here:

• A

• B

• C

• D

Identify the carbon brushes in the figure here:

• A

• B

• C

• D

A commutator would be found in what type of motor?

• A.C.

• D.C.

• Both A.C. & D.C.

• Neither A.C. or D.C.

Answer explanation

Commutator is always found in D.C. motors

Slip rings would be found in what type of motor?

• A.C.

• D.C.

• Both A.C. & D.C.

• Neither A.C. or D.C.

Answer explanation

Slip rings are always found in A.C. motors.

If the machines input is mechanical energy and the output electrical energy then that machine is a

• Vice

• D.C.

• Generator

• Motor

If the machines input is electrical energy and the output mechanical energy then the machine is a

• Vice

• A.C.

• Generator

• Motor

What are the three types of DC motors:

(Select 3 answers)

• Series

• Squirrel cage

• Shunt

• Compound

What starter is used to start-up a squirrel cage induction motor?

• DOL

• Star-detla

• Stator Resistance

• Autotransformer

What starter is used with heavy loads?

• Direct-On-Line

• Rotor Resistance

• Autotransformer

• Star Delta