• 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 a transformer which of the following losses are zero?

 Rotational loss
All of these
 Copper loss
 Iron loss

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Synchronous condensers are used to

 reduce hunting
 improve starting torque
 improve the power factor
All of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Synchronising power of a synchronous motor varies

All of these
 directly as Xs2
 inversely as 1/Xs
 directly as synchronous reactances Xs

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
At stand still condition the value of slip is

 finite value
 infinite value
 1
 0

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
An 8 pole DC generator has 500 armature conductors and useful flux per pole of 0.065 Wb. What will be the emf generated if it is lap connected and runs at 1000 rpm. What must be the speed at which it is driven to produce the same emf if it is wave wound?

 541.67V, 250 rpm.
 541.67V, 200 rpm.
 2166.67V, 230 rpm.
 2166.67V, 270 rpm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If starter is not used with large DC motor for starting, it will

 damage the armature and commutator.
 draw a starting current many times its rated full load current.
 all of above.
 provide execessive voltage drop in line.

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
↑