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Recently Added Questions in Inventions

Q: Who invented waterproof fabrics ? 89 0

  • 1
    James Dewar
    Correct
    Incorrect
  • 2
    Charles Goodyear
    Correct
    Incorrect
  • 3
    Mary Moore
    Correct
    Incorrect
  • 4
    Charles Macintosh
    Correct
    Incorrect
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Answer : 4. "Charles Macintosh"
Explanation :

Answer: D) Charles Macintosh Explanation: Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

Q: Who is known as inventor of World Wide Standard Time ? 79 0

  • 1
    Sandford Fleming
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  • 2
    Fredrich
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    Incorrect
  • 3
    Williamson
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  • 4
    James Broot
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Answer : 1. "Sandford Fleming"
Explanation :

Answer: A) Sandford Fleming Explanation: Sir Sandford Fleming, (January 7, 1827 – July 22, 1915) was a Scottish Canadian engineer and inventor. Born and raised in Scotland, he emigrated to colonial Canada at the age of 18. He proposed worldwide standard time zones, designed Canada's first postage stamp.

Q: The first effective vaccine against polio was prepared by ? 87 0

  • 1
    Robert Edwards
    Correct
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  • 2
    James Simpson
    Correct
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  • 3
    H Gibbon
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  • 4
    Jonas E Salk
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Answer : 4. "Jonas E Salk"
Explanation :

Answer: D) Jonas E Salk Explanation:

Q: App to locate board exam centre for students launched by ? 93 0

  • 1
    CBSE
    Correct
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  • 2
    IIT
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  • 3
    JNU
    Correct
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  • 4
    NCERT
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Answer : 1. "CBSE"
Explanation :

Answer: A) CBSE Explanation:

Q: Who invented Dynamite? 71 0

  • 1
    Graham Bell
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  • 2
    Nikola Tesla
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  • 3
    Alfred Nobel
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  • 4
    Louis Pateur
    Correct
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Answer : 3. "Alfred Nobel"
Explanation :

Answer: C) Alfred Nobel Explanation: Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. Known for inventing Dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel producer to a major manufacturer of cannon and other armaments.

Q: When was Barb Wire patented 61 0

  • 1
    1898
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  • 2
    1868
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  • 3
    1874
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  • 4
    1866
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Answer : 3. "1874"
Explanation :

Answer: C) 1874 Explanation: Joseph F. Glidden - Father of Barbed Wire. Glidden was born in New York in 1812. He invented Barbed Wire in 1873 and was granted the patent on Nov. 24, 1874. After a three year battle over the patent, which he eventually won received a patent for the modern invention in 1874 after he made his own modifications to previous versions.

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