• 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
If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is

 200 V.
 230 V.
 115 V.
 460 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a dc machine shunt resistance and armature resistance values are

 high and high
 high and low
 low and high
 low and low

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The air gap between the yoke and armature is dc machine is kept very small

 to avoid over heating.
All of these
 to achieve a stronger magnetic field.
 to avoid locking of the armature.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In Ward-Leonard system, the lower limit of the speed imposed by

 None of above.
 Field resistance.
 Armature resistance.
 Residual magnetism of the generator.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the

 generator field terminal.
 generator armature terminal.
 motor armature terminal.
 motor field terminal.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For the same power output rating and full load speed, the motor will have poorest starting torque, is

 Differential compound.
 Cummulative compound.
 Series.
  Shunt.

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
↑