PSP Diagnostic Quiz

Quiz
•
Engineering
•
University
•
Hard
Norman Francisco
Used 5+ times
FREE Resource
50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which part of a DC machine houses the field winding?
Armature
Stator
Commutator
Rotor
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The primary role of a commutator in a DC generator is to:
Maintain a constant current
Convert AC to DC
Improve efficiency
Control voltage
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the main purpose of interpoles in DC machines?
Reduce armature reaction
Increase efficiency
Reduce losses
Provide insulation
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The efficiency of a transformer at full load is typically:
70-75%
80-85%
95-98%
50-55%
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In a DC motor, back EMF is generated in:
Field winding
Armature winding
Rotor core
Commutator
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The synchronous speed of a 4-pole induction motor supplied with 50 Hz is:
750 RPM
1500 RPM
3000 RPM
1000 RPM
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What type of DC generator is commonly used for arc welding?
Series generator
Shunt generator
Compound generator
Permanent magnet generator
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