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

Electrical Machines

Electrical Machines
The no load current in a transformer lags the applied voltage by

 90°.
 about 115°.
  about 75°.
 0°.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a DC motor can be determent by

 Lenzs law.
 Flemings right hand rule.
 Amperes law.
  Flemings left hand rule.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is

 100 VA
 550 VA
 500 VA
 110 VA

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which type of motors uses slip rings?

 DC Shunt Motor
 Induction motors
 Both Synchronous and Induction motor
 Synchronous motors

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following are variable losses?

 armature copper loss
 eddy current loss
 hysteresis loss
 shunt field copper loss

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the field of a dc shunt motor gets opened while the motor is running, then the

 armature current will drop
 armature will oscillate about original speed as the mean speed
 motor will attain dangerously high speed
 motor will become slow.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electrical Machines

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
↑