• 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
If a DC Series motor is connected across an AC supply it will

 run at lower speed.
 not run.
 run at normal speed.
 burn.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3 - Φ, 12 pole, 600 V, 50 Hz star connected IM has rotor resistance and stand still resistance of 0.03 Ω and 0.5 Ω respectively. The speed of maximum torque will be

 450 rpm.
 540 rpm.
  470 rpm.
  240 rpm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The torque speed characteristics of a AC servomotor is approximately

 linearised
 hyperbola
 parabola
 any of the above

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Generators work on the principle of production of

 statically induced emf.
 dynamically and statically induced emf.
None of these
 dynamically induced emf.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is

 50 V
 zero
 20 V
 40 V

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Lamination of core are generally made of

 stainless steel.
 silicon steel.
 cast iron.
 carbon.

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
↑