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Home General Knowledge Inventions See What Others Are Saying!
  • Question
  • Revolving Door was invented by ________.


  • Options
  • A. Lucien Vidi
  • B. John Venn
  • C. Theophilus Van Kannel
  • D. Lewis Urry

  • Correct Answer
  • Theophilus Van Kannel 

  • Tags: Bank Exams

    More questions

    • 1. The Pie Day is observed on?

    • Options
    • A. March 13
    • B. March 14
    • C. March 3
    • D. March 4
    • Discuss
    • 2. In India, Air Force Day is celebrated on

    • Options
    • A. 10 october
    • B. 11 october
    • C. 9 october
    • D. 8 october
    • Discuss
    • 3. National Tourism Day is celebrates every year in India on?

    • Options
    • A. Jan 25
    • B. Jan 27
    • C. Jan 29
    • D. Jan 31
    • Discuss
    • 4. An IP address is _____ bit number.

    • Options
    • A. 8
    • B. 16
    • C. 32
    • D. 64
    • Discuss
    • 5. Indian War of Independence 1857 was written by

    • Options
    • A. V. D. Savarkar
    • B. Lala Lajpat Rai
    • C. Mahatma Gandhi
    • D. Jawaharlal Nehru
    • Discuss
    • 6. In December 2017, Indian Railways announced to equip all trains with Bio-Toilets by ______

    • Options
    • A. December 2018
    • B. March 2019
    • C. December 2019
    • D. March 2018
    • Discuss
    • 7. In Microsoft Word, _______ allows us to change the color of selected text.

    • Options
    • A. Font Color
    • B. Text Color
    • C. Change Color
    • D. Background Color
    • Discuss
    • 8. In which of the following years was the 'Caste Disabilities Act' passed?

    • Options
    • A. 1850
    • B. 1860
    • C. 1863
    • D. 1876
    • Discuss
    • 9. Shortest day in the Northern hemisphere is _______.

    • Options
    • A. 22nd November
    • B. 22nd December
    • C. 22nd March
    • D. 22nd June
    • Discuss
    • 10. The paintings in the Ajanta and Ellora caves are indicative of the development of art under the -

    • Options
    • A. Pallavas
    • B. Chalukyas
    • C. Pandyas
    • D. Rashtrakutas
    • Discuss


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