• 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
DC shunt motors are suitable for

 Blowers and fans.
  All of this.
 Lathes.
 Centrifugal pumps

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Armature reaction of an unsaturated DC machine is

  none of above.
 demagnetising.
  crossmagnetising.
  magnetising.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which one of the following statement is correct ? In an induction motor if the air gap is increased then

 its power factor will reduce
 its efficiency will improve
 its speed will reduce
 its speed will increase

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In above question, the output power delivered by generator G1 and G2 will be

 5.7 kW, 8.7 kW.
 9.6 kW, 12 kW.
  6.3 kW, 9.3 kW.
 9.3 kW, 9.3 kW.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load?

 1037.5 r.p.m.
 963.8 r.p.m.
 1130 r.p.m.
 4575.4 r.p.m.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a 3 - Φ induction motor is clockwise when it is supplied with 3 - Φ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

  A - C - B.
 B - C - A or C - A - B.
 B - C - A.
 C - A - B.

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
↑