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

Inventions

Inventions
In which decade were the first successful diode and triode vacuum tubes invented?

1800s
1900s
1890s
1880s

ANSWER DOWNLOAD EXAMIANS APP

Inventions
When was the first elevator built?

1743
1760
1785
1739

ANSWER DOWNLOAD EXAMIANS APP

Inventions
In which decade was the first solid state integrated circuit demonstrated?

1980s
1950s
1970s
1960s

ANSWER DOWNLOAD EXAMIANS APP

Inventions
Who invented Electric Generator?

Thomas Alva Edison
Michael Faraday
Alfred B. Nobel
Sir Alexander Graham Bell

ANSWER DOWNLOAD EXAMIANS APP

Inventions
What charge card, developed in 1950, was the first to be accepted nationally in the US?

Diner's Club
Discover
Visa
MasterCharge

ANSWER DOWNLOAD EXAMIANS APP

Inventions
Who synthesized the first wholly artificial gene?

Hargobind Khorana
Benjamin Franklin
Meghnad Saha
J.J. Thompson

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Inventions

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
↑