• 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
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
 -1.92
 -0.08

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Drop in speed from no load to full load is very high in

 Cummulative compound motor with interpoles.
 Series motor with interpoles.
  Series motor without interpoles.
 Shunt motor with interpoles.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is

 440 A.
 250 A.
 570 A.
 340 A.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which motor cannot be started on no load?

 shunt motors
 series motors
 both B and C
 cumulative compound motors

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In synchronous motor, the damper winding is generally used to

  reduce the eddy currents.
  reduce noise level only.
  provide starting torque only.
  prevent hunting and provide the starting torque.

ANSWER DOWNLOAD EXAMIANS APP

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

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

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
↑