• 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 50 Hz induction motor is running at 1470 rpm. What is the slip value?

 0.02
 0.04
 0.4
 0.2

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of following motor is preferred for belt conveyor?

  Universal motor.
  Synchronous motors.
  Slip ring induction motor.
  Reluctance motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will

 remain unchanged.
 reduce by 5 %.
 depend on other factors.
 increase by 5 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is

 60
 40
 600
 660

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be

  R2 = s2X2.
  R2 = sX2.
  sR2 = X2.
  R2 = s2X2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Hysteresis loss will depends on

 f³
 f
 f1.6
 f²

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
↑