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

Rectifiers and Converters

Rectifiers and Converters
In a mercury arc rectifier characteristic blue luminosity is due to

electron streams
colour of mercury
ionization
high temperature

ANSWER DOWNLOAD EXAMIANS APP

Rectifiers and Converters
Which of the following mercury arc rectifier will deliver least undulating current?

Six-phase
Two-phase
Single-phase
Three-phase

ANSWER DOWNLOAD EXAMIANS APP

Rectifiers and Converters
In a rotary converter armature currents are

partly a.c. and partly d.c.
d.c. only
a.c. only
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Rectifiers and Converters
The voltage drop between the anode and cathode, of a mercury arc rectifier comprises of the following

anode drop and arc drop
cathode drop and arc drop
anode drop and cathode drop
anode drop, cathode drop and arc drop

ANSWER DOWNLOAD EXAMIANS APP

Rectifiers and Converters
The internal efficiency of a mercury arc rectifier depends on

current only
voltage and current
voltage only
r.m.s. value of current

ANSWER DOWNLOAD EXAMIANS APP

Rectifiers and Converters
Mercury, in arc rectifiers, is chosen for cathode because

Its ionization potential is relatively low
Its atomic weight is quite high
All of the listed here
Its boiling point and specific heat are low

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Rectifiers and Converters

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
↑