NCCER Electrical Module 2 Level 2 Motors_ Theory and Application 75 QUESTIONS WITH VERIFIED ANSWERS 2025.

NCCER Electrical Module 2 Level 2 Motors:
Theory and Application
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The ____ is a movable electromagnet located between the poles of another

fixed permanent (field) magnet as shown.




Choose matching definition




1 Armature 2 Rotor




3 Commutator 4 Stator




Don't know?




Magnetic lines of force are continuous and always

How DC motors operate? form closed loops; Magnetic lines of force do not

cross.

, Armature: (Definition) The rotating windings of a DC motor.


The ____ is a movable Armature

electromagnet located

between the poles of

another fixed permanent

(field) magnet as shown.


A twisting force called Torque

______ must be developed.

_____ is produced by

mounting a loop in a fixed

magnetic field and as long

as the fields of the magnet

and armature interact.


A device used on electric motors or generators to
Commentator: (Definition)
maintain a unidirectional current.


In the neutral plane, no ____ Torque

is produced and the

rotation of the armature

should stop


A _____ is produced by the Magnetic field

fields poles, and a loop of

wire in the armature turns

and cuts this magnetic

field.


CEMF Counter electromotive force (CEMF)


The rated output capacity of the motor. It is based on

Horsepower: (Definition) breakdown torque, which is the maximum torque a

motor will develop without an abrupt drop in speed.


Horsepower: (Equation) Hp= Watts/746


Shunt

Types of DC motors Series

Compound