• 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
The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease?

 19%
 40%
 5%
 10%

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two identical loss less series motors connected in series across a dc supply voltage, runs at speed of N1 and N2, then ratio of their output power is

 N1 : N2.
 none.
 N12 : N22.
 1 : 1.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Commutator in DC generator is used for

 increase efficiency
 collecting of current
 reduce losses
 convert AC armature current in to DC

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The speed regulation of a DC motor is given as

 NnL − NfL.
 NnL/NfL.
 (NnL − NfL)/NfL.
 (NfL − NnL)/NnL.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be

  equal to number of rotor slots.
  either (B) or (C).
  unequal to number of rotor slots and skewed in shape.
  an integral multiple of number of rotor slots.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch

 50
 10
 1
 100

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
↑