• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Three Phase Induction Motors

Three Phase Induction Motors
The crawling in an induction motor is caused by

Low voltage supply
Improper design of machine
Harmonics developed in the rotor
High loads

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______

Leakage reactances are decreased
Leakage reactances are increased
No load current is decreased
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
In an induction motor, the ratio of rotor cu loss and rotor input is given by

1/S
S
1-S
S/1-S

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
An induction motor is

Non self starting
Self starting with low torque
Self starting with zero torque
Self starting with high torque

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The efficiency of an induction motor can be expected to be nearly

95 to 98 %
80 to 90%
99%
60 to 90%

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
At no load the rotor core loss of a 3 phase induction motor is

Practically zero
None of the listed here
Large
Small

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Three Phase Induction Motors

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
↑