• 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
In a dc machine 6 pole wave winding is used. The number of parallel paths are?

 2
 1
 6
 4

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Direction of rotation of DC motor is reversed by

 Reversing armature connection or field connection.
 Adding resistance to field circuit.
 Reversing supply connection.
 Interchanging armature and field connection.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be

 80.
  18.
 36.
 50.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In field flux method speed control of DC Motor is

 constant torque drive below the base speed.
 constant torque drive above the base speed.
 constant hp drive below the base speed.
 constant power drive above base speed.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is

  0.08 pu.
  0.02 pu.
 0.16 pu.
 0.01 pu.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is

 2.56 %.
 2.57 %.
 3.76%.
 4.76%.

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
↑