• 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
The flux involved in the emf equation of a transformer has

 rms value.
 total value.
  maximum value.
 average value.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If iron loss and full load copper loss of any transformer are denoted by Pi and Pc, then the load corresponding to maximum efficiency is given by

 (Pi / Pc)2 × full Load.
 (Pi / Pc) × full Load.
  (Pi / Pc)0.5 × Full Load.
 (Pi / Pc)1.6 × full Load.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The armature core of a DC machine is laminated to minimise

 mechanical loss
 eddy-current loss
 hysteresis loss
 temperature rise

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value?

 0.2
 0.04
 0.02
 0.4

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 230 V, 50 Hz, 4 pole single phase induction motor is rotating in the clockwise ( forward ) direction at a speed of 1425 rpm. If the rotor resistance at standstill is 7.8 Ω. Then the effective rotor resistance in the backward branch of the equivalent circuit will be

  2 Ω.
 10 Ω.
  4 Ω.
 8 Ω.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A differentially compound motor under high-over-load conditions will behave like a / an

 AC synchronous motor.
  series motor.
 shunt motor.
 cummulative compound motor.

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
↑