• 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
In an induction motor, what is the ratio of rotor input to rotor copper loss?

 1/S
 S
 1/(1-S)
 1-S

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The volt-ampere euation for a long-shunt compound motor is given by

 Vt = Ea + Ia(ra + rs)
 Vt = Ea + Iara+ ILrs
 Vt= Ea + Iara
 Vt= Ea– Iara

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to

 I/Ia2
 1/Ia
 Ia2
 Ia

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is

 -1.92
 -0.08
 0.08
 1.92

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of following winding is connected in series with armature winding of DC machine?

 Commutating pole winding.
 Compensating winding.
 Auxiliary winding.
 Both Compensating and Commutating pole winding.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The armature core of the rotor bars of dc motors are laminated

  to reduce eddy current loss.
  to reduce hysteresis loss.
  to reduce mechanical losses.
  to provide better flux linkage.

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
↑