• 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
The approximate efficiency of a large transformer is

95%
65%
50%
80%

ANSWER DOWNLOAD EXAMIANS APP

Transformers
A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is

13 Ω
78 Ω
7.8 Ω
1.3 Ω

ANSWER DOWNLOAD EXAMIANS APP

Transformers
The primary winding of a power transformer should always be

fused
switched
shorted
open

ANSWER DOWNLOAD EXAMIANS APP

Transformers
The permissible flux density in case of cold rolled grain oriented steel is around

2.7 Wb/m²
4.7 Wb/m²
1.7 Wb/m²
3.7 Wb/m²

ANSWER DOWNLOAD EXAMIANS APP

Transformers
The amount of copper in the primary is _______that of secondary.

About the same as
Greater than
Smaller than
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Transformers
A transformer transfers electrical energy from primary to secondary usually with a change in ______

Voltage
Time period
Power
Frequency

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
↑