The image shows the major parts of a d. c. machine.
The parts that require regular maintenance are:
EL19 DC machines Revision
Quiz
•
Education
•
10th Grade
•
Medium
Reiner Glaser
Used 32+ times
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50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The image shows the major parts of a d. c. machine.
The parts that require regular maintenance are:
the field windings
the brush gear and commutator
the armature windings
the bearings
the pole shoes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
DC machines are devices which work by the use of electromagnetism just like transformers, solenoids, relays, etc. However, they have an additional hazard which is:
very strong magnetic fields
rotating parts
higher fault levels
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of these is/are NOT a part of a d.c. generator?
slip rings
commutator
brushes
armature
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of a d.c. generator converts the a.c. produced in the coil into d.c. at the generator terminals?
field coils
commutator and brushes
yoke or frame
armature
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The process of generating an EMF in a conductor is called:
electro motive force
electromagnetic induction
generator energy conversion
voltage induction
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The single loop generator shown, produces maximum output at the:
(select all that apply)
0° coil position
90° coil position
180° coil position
270° coil position
360° coil position
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Generators get their mechanical power from:
batteries
prime movers
transformers
power capacitors
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