• 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, the no-load slip is generally equal to

 4 %.
 1.5 %.
  zero.
  less than 1 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same?

 1
 0
 0.5
 any of the above

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What does the use the of height flux density value in transformer design lead to?

 Reduced iron loss.
 Increase in weight/KVA.
  Decrease in weight/KVA.
 Reduced copper loss.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The brush-axis of a bipolar dc motor is rotated by 90°. The effect of this rotation on the back emf Eband the torque developed Tdwould be such that

 both Eb and Td are zero
 Eb is unchanged, but Td is zero
 both Eb and Td are unchanged
 Eb is zero, but Td is unchanged

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The core flux in transformer depends mainly on

 supply voltage, frequency and load
 supply voltage and frequency
 supply voltage
 supply voltage and load

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt.

 320 Amp.
 800 Amp.
  0.5 Amp.
  400 Amp.

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
↑