• 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
Number of slip rings in 3-phase synchronous motor will be

 0
 3 or 4
 2
 1

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When a DC cummulative compound wound motor is loaded

 Torque decrease and speed increases.
 Both torque and speed decrease.
 Torque and speed both increase.
  Torque increase and speed decrease.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generator, the electricity produced in armature is

  armature is not present in DC generator.
  DC.
  AC.
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be

 25 kW.
 23.06 kW.
 24.11 kW.
 26.21 kW.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the speed of a dc motor increases with load torque, then it is a

 comulatively compounded motor
 permanent magnet motor
 differentially compounded motor
 series motor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be

 1500 rpm
 3000 rpm
 75 rpm
 375 rpm

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
↑