• 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
Motors for fans and pumps are selected in the rpm range

  720 to 920.
  500 to 720.
  375 to 500.
  1440 to 2880.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which motor used in Lathe machine?

  D.C. shunt motor.
  D.C . series motor.
  D.C. cumulative compound motor.
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed?

 15.6 Nm
 15.28 Nm
 16.55 Nm
 Zero

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In case of DC shunt motor if load is reduced

  The speed will remains almost constant.
 DC Shunt Motor
 The speed will increase in proportion to reduction in load.
 The speed will increase abruptly.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is

 123.3 KVA
 83.33 KVA
 50 KVA
 100 KVA

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following generators are used in arc welding?

 series generators
 cumulative compound generators
 shunt generators
 differential compound generators

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
↑