• 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
In an induction motor, what is the ratio of rotor input to rotor copper loss?

 S
 1-S
 1/(1-S)
 1/S

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generator on no-load, the air gap flux distribution in space is

  flat topped.
  sinusoidal.
 triangular.
  pulsating.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to

  very low
  approx to one.
  less than one.
  greater than one.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Iron loss in a transformer mainly occurs in

 iron made tank of transformer.
 transformer insulating oil.
 winding of transformer.
 steel core in transformer.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is

 50 Hz
 40 HZ
 25 Hz
 60 Hz

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generators, the brushes remain in contact with conductors which

 lie under north pole.
 lie under south pole.
 there is no hard and fast rule for this.
 lie in the inter polar gaps.

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
↑