• 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 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is

 200Hz.
 100Hz.
 50Hz.
 150Hz.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a dc machine 72 number of coils are used. Find the number of commutator segments required?

 37
 74
 72
 36

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 230 volt dc motor has an armature winding resistance of 0.5 ohm. Calculate the emf induced by the motor if the full load armature current is 23 ampere.

 220.4 volt.
  120 volt.
  None of these.
  218.5 volt.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What is the actual arrangement of series wound generator?

 Armature and field both are connected.
  Armature and field both are in series with the load.
 Armature and field both are parallel.
 Armature winding is in series with load.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC machine yoke offers

 flux path completion
 produce working flux
 both A and B
 mechanical protection to the machine

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000.

 30 volts.
 40 volts.
 10 volts.
 20 volts.

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
↑