• 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 rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be

 600 W
 625 W
 700 W
 650 W

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The magnetic field which initially induces emf in the armature in a self excited DC generator is because of

None of these
 armature reaction.
  permanent magnets.
  residual magnetism.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The volt-ampere euation for a long-shunt compound motor is given by

 Vt= Ea– Iara
 Vt = Ea + Iara+ ILrs
 Vt= Ea + Iara
 Vt = Ea + Ia(ra + rs)

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two transformers operating in parallel will share the load depending on their

 leakage reactance
 per unit impedance
 ratings
 efficiency

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For small value armature current Ia the torque developed by a DC series motor is proportional to

  √Ia.
  Ia2.
  1/Ia.
  Ia.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In shunt dc motor the direction of rotation of the motor will reversed. When

  none of above.
  only armature terminals are reversed.
  only field terminals are changed.
  either field terminals are reversed or armature terminals are reversed.

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
↑