• 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
DC shunt motors are suitable for

 Lathes.
 Blowers and fans.
 Centrifugal pumps
  All of this.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When excitation is increased (over excitation), the synchronous generator operates at

 lagging power factor.
 leading power factor.
 unity power factor.
 any of the above.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When two DC series motors are connected in parallel, the resultant speed is

 zero.
 less than normal speed.
 normal speed.
 more than normal speed.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will

 get damaged.
 develop very low starting torque.
 not start automatically.
 start automatically without trouble.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is

 3
 1/√3
 √3
 1/3

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A smaller air gap in a polyphase induction motor helps to

  increase the starting torque.
  reduce the chance of crawling.
  reduce the chance of cogging.
  reduce the magnetizing current.

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
↑