• 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
For a dc machine shunt resistance and armature resistance values are

 low and high
 high and low
 high and high
 low and low

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is

 0.6.
 0.8.
  1.
 0.4.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The dc motor which can provide zero speed regulation at full load without any controller, is

 shunt.
 differential compound.
 cumulative compound.
 series.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant.

  65.8 Nm.
 38.5 Nm.
 74 Nm.
 27.73 Nm .

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________.

 5 %.
  2.67 %.
 1.5 %.
  30 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following bearings and their uses are correct

 both A and B
 roller bearings → large machines
 neither 1 nor 2
 ball bearings → small machines

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
↑