• 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 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle?

 45°
 30°
 10°
 60°

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following load normally needs starting torque more than rated torque?

 Blowers.
 Centrifugal pumps.
  Conveyers.
 Air compressors.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 4 pole dynamo with wave wound armature has 51 slots contains 20 conductors in each slot. If induced emf 357 Volts and speed is 8500 rpm, flux per pole will be

 1.4 mWb.
  1.2 mWb.
 3.5 mWb.
 2.7 mWb.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Unbalance 3 - Φ stator currents cause

  heating of rotor.
All of these
  double frequency currents in the rotor.
  vibrations.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Open circuit in a transformer is prefered with

 high frequency supply
 rated transformer current
 rated transformer voltage
 direct current

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed?

 1000.
 0.
 500.
 2000.

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
↑