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

Power Electronics

Power Electronics
A UJT is sometimes called ___________ diode.

High resistance
Double-base
Low resistance
Single-base

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
A GTO can be turned on by applying

 Positive source signal.
 Positive drain signal.
 None of these.
  Positive gate signal.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n

 90.
 60.
 70.
  80.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is

  0.25.
 0.75.
 0.7.
 0.2.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
What is used to protect the SCR from over current ?

 Heat sink.
 Voltage clamping device.
 Snubber circuit.
  CB and fuse.

ANSWER DOWNLOAD EXAMIANS APP

Power Electronics
A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is

 60.
 3.714.
 65.
  37.14.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Power Electronics

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
↑