Transformer Efficiency and Design Quiz
Authored by MARSHAL GREYNER
Engineering
University
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for transformer efficiency (η)?
η = (Power output / Power input) × 100
η = (Power losses / Power input) × 100
η = (Power input / Power output) × 100
η = (Power output - Power losses) / Power input
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the secondary voltage of a transformer to decrease as the load increases?
Decrease in primary voltage
Increase in insulation resistance
Decrease in iron losses
Increase in copper losses
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of transformer core has both windings on the center limb?
Core type
Shell type
Air core
Toroidal type
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of lamination in an iron core?
To reduce eddy current loss
To enhance insulation
To improve magnetic properties
To increase eddy current loss
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of transformer is designed to provide a current in its secondary that is proportional to the primary current?
Voltage transformer
Pulse transformer
Current transformer
Audio transformer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of insulation in transformers?
To enhance magnetic properties
To prevent arcing between windings
To increase efficiency
To reduce copper losses
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of transformer is optimized for transmitting rectangular electrical pulses?
Voltage transformer
Audio transformer
Pulse transformer
Current transformer
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