EE MCQ
EE MCQ
Home
Quiz
Contact Us
Transformers
When secondary of a current transformer is open-circuited its iron core will be
cool as there is no secondary current
hot because of heavy iron losses taking place in it due to high flux density
none of above will happen
hot because primary will carry heavy current
cool as there is no secondary current
hot because of heavy iron losses taking place in it due to high flux density
none of above will happen
hot because primary will carry heavy current
Answer
Download EE MCQ app
Related Question
Transformers
The steel used for transformer core has
High silicon content
Low hysteresis loss
All of the listed here
High permeability
High silicon content
Low hysteresis loss
All of the listed here
High permeability
Answer
Download EE MCQ app
Transformers
Losses which occur in rotating electric machines and do not occur in trans formers are
magnetic losses
hysteresis and eddy current losses
friction and windage losses
copper losses
magnetic losses
hysteresis and eddy current losses
friction and windage losses
copper losses
Answer
Download EE MCQ app
Transformers
The main reason for generation of harmonics in a transformer could be
fluctuating load
mechanical vibrations
saturation of core
poor insulation
fluctuating load
mechanical vibrations
saturation of core
poor insulation
Answer
Download EE MCQ app
Transformers
When load on a transformer is increased, the eddy current _____
Is decreased
Is increased
None of the listed here
Remains unchanged
Is decreased
Is increased
None of the listed here
Remains unchanged
Answer
Download EE MCQ app
Transformers
The short circuit test helps us to find
Cu loss at any desire load
None of the listed here
Iron loss at no load
Cu loss at no load
Cu loss at any desire load
None of the listed here
Iron loss at no load
Cu loss at no load
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram