123 Jep

1

100

A Device that converts mechanical input into DC electrical output?

Generator

200

Armatures are wound to provide high voltage, high current, or some specific combination of voltage and current. The winding that provides low voltage and high current is the ____ wound?

Lap

300

The items that ride against the commutator to make electrical connection are the?

Brushes

400

The output voltage of a shunt generator is usually controlled by the amount of?

Field excitation current

500

Series field windings are connected in series with the armature. They are wound with ____ turns of fairly ___ wire?

Few, Large

2

100

The magnetic is sometimes provided by electromagnets. This by windings that are wound around?

Pole pieces 

200

Shunt field windings are connected in parallel with the armature. They are wound with ____ turns of fairly ____?

Many, small

300

A generator containing both series and shunt field windings is called a ____ generator?

Compound

400

In a compound generator, the setting of the amount of currents in the series and shunt field windings determines the?

Compounding 

500

In a generator, the series field diverter is also called the?

Series field shunt rehostat 

3

100

A device that converts electrical input into mechanical output is called?

Motor

200

The DC motor, known as a "constant speed motor" is the ___ motor?

Shunt

300

The speed regulation of a DC motor is proportional to the?

Armature resistance 

400

In a compound DC motor control circuit, the field loss relay will disconnect the ____ if the power is lost to the?

Armature, shunt field 

500

Permanent magnet motors have ___ efficiency than wound field motors?

Higher

4

100

The servomotor which has a fiberglass and copper rotor is the ____ motor?

ServoDisc

200

Most converters that apply power to brushless DC motor produce a?

Trapezoidal

300

What type of motor must never be operated under a no load condition?

Series

400

When full voltage is applied to the armature and reduced current flows through the shunt field, the motor operates at ______?

Overspeed

500

What is the name of the protective device that is connected in series with the shunt field and found on most large compound DC motors?

Field loss relay

5

100

A force that tends to cause rotation is known as?

Torque

200

Armature reaction is the bending of the main magnetic field by the _____ magnetic field?

Armature

300

Brushless DC motors that require very smooth operation such as grinders that produce a finished surface are powered by ____ waves

Sine

400

It is all right to operate a series motor with no load connected?

False

500

T/F Counter-electromotive force and back-EMF are names for the voltage induced into the armature of a Dc motor?

True