Module 7745 Chapter B

Which of these components can be found on a Rotor

• Field windings

• Pole Pieces

• Brushgear

• Armature Winding

Select all the components below that can be found on a Stator.

Select 1 or more answers.

• Field windings

• Brushgear

• Commutator

• Armature Winding

A 4 pole, 12-coil Lap wound machine has how many parallel paths.

• 12

• 4

• 2

• 0

What type of armature winding would you use if you required a high output voltage.

• Lap winding

• Wave winding

• Chest winding

• Heavy winding

A 4 pole, 24-coil Wave wound machine has how many parallel paths.

• 24

• 4

• 2

• 0

Which of these statements a true regarding the laminated iron core in a Rotor?

Select 1 or more answers.

• It holds the armature winding in slots

• It forms part of the magnetic circuit

• It increases the eddy currents in the armature, therefore increases the magnetic flux

• It forms part of the electric circuit

• It forms the return path for the magnetic field

What component does label A point to on the DC Generator Assembly shown above

• Armature Winding

• Commutator Segments & Insulation

• Pole Face

• Field Coil

• Brush

What component does label K point to on the DC Generator Assembly shown above

• Armature Winding

• Commutator Segments & Insulation

• Pole Face

• Field Coil

• Brush

What component does label B point to on the DC Generator Assembly shown above

• Drive Shaft

• Commutator Segments & Insulation

• Iron Laminated Core

• Field Coil

• Brush

An 8 pole DC generator has an armature, Lap wound with 216 conductors. How many conductors will there be on each parallel path?

• 27

• 108

• 1728

• 432