• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Transformers

Transformers
An isolation transformer has primary to secondady turns ratio of

1:1
1:2
Can be any ratio
2:1

ANSWER DOWNLOAD EXAMIANS APP

Transformers
A common method of colling a power transformer is

Air blast cooling
Any of the listed here
Oil cooling
Natural air cooling

ANSWER DOWNLOAD EXAMIANS APP

Transformers
To step 110 V ac down to 20 V ac, the turns ratio must be

0.018
5.5
0.18
18

ANSWER DOWNLOAD EXAMIANS APP

Transformers
The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is

5 A
20 A
10 A
15 A

ANSWER DOWNLOAD EXAMIANS APP

Transformers
The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns?

210
900
450
350

ANSWER DOWNLOAD EXAMIANS APP

Transformers
In which of the following transformer part of primary winding also serves as the secondary winding?

Step-up transformer
Potential transformer
Auto transformer
Current transformer

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Transformers

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑