• 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. Find the speed of stator magnetic field with respect to rotor?

 zero
 30 rpm
 1500 rpm
 1470 rpm

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree?

  270.
 30.
 45.
 180.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following motors has negative speed regulation?

 Shunt motors.
 Differential compound motors.
 Both B and C.
 Series motors.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg )

 1600 Volt.
 1500 Volt.
 2000 Volt.
  0 Volt.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following windings are necessary in case of all dc machines?

 wave winding
 open type winding
 closed winding
 lap winding

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The principal of starting of 3 - Φ IM is similar to

  repulsion motor type starting.
  capacitor run IM.
  transformer with short-circuited secondary.
  synchronous motor.

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
↑