• 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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance.

 shunt field
 none of above
 both A and B
 armature circuit

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net voltage across the armature resistance at the time of plugging will be

 234 V
 6 V
 474 V
 240 V

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Winding conductors of an electrical power transformer are mainly insulated by

 cotton insulation.
  paper insulation.
 rubber insulation.
 wooden insulation.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a standard frequency the machine operates at a particular speed known as

 normal speed.
 synchronous speed.
 slip speed.
 any of the above.

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
↑