The major parts of the DC motor include:

This part of DC motor consists of several segments insulated from each other and the armature shaft by pieces of mica:

This ____ consist of the field frame, a set of pole pieces, and field coils:

The ___ assembly consists of brushes and their holders:

What are the two most common brushes used in DC motors:

When a new brush is installed in a generator use this specification of sand paper:

The ___ is the part of the motor that the armature assembly rotates in.

True or False: In some DC generators, an interpole is placed between the main poles of

                                    the generator in order to reduce magnet field distortion

Types of DC motors include: Series, ___, and Compound

The ____ motor is able to draw a large starting torque because of the winding’s low resistance

____ motors develop little torque when they are first started and are used when constant speed is desired. ​

True or False: The compound motor is used whenever the combined characteristics of the series and shunt motors are desired. 

When the armature starts rotating in a magnetic field a voltage is produced which is known as:

• The direction of a DC motor’s rotation is reversed by changing the direction of _____ in either the armature or the field windings.​

Mechanical losses are from overcoming:

Electrical losses are classified as copper or ___ loss

A DC generator having a field winding connected in parallel with the external circuit is called a:

An ______________ is used in some aircraft systems to convert a portion of the aircraft’s DC

      power to AC.

Which kind of circuit only has one path for electricity to flow?