Inventions Questions and Answers updated daily – General Knowledge



15 Inventions Questions and answers section with explanation for various online exam preparation, various interviews, General Knowledge Inventions online test. Inventions Questions with detailed description, explanation will help you to master the topic.

Inventions Questions

1. In which decade was the transistor invented?



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Correct Ans:1940
Explanation:
On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.


2.     When were blue jeans invented?



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Correct Ans:1850
Explanation:
The first blue jeans were invented by tailor Levi Strauss, who invented tougher working pants for the miners of the California Gold Rush.


3. In which decade was the telegraph invented?



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Correct Ans:1840
Explanation:
On May 24, 1844, Samuel Morse send his famous message, "What hath God wrought?"


4. What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?



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Correct Ans:television
Explanation:
Zworykin invented both the tube (iconoscope) for transmission and the receiver (kinescope) in 1923 and 1924, respectively.


5. When was the first elevator built?



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Correct Ans:1743
Explanation:
The first elevator was built in the palace of King Louis XV. It only traveled up one floor, and was hand powered by men inside the chimney.


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



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Correct Ans:
Explanation:
In 1904, John Ambrose Fleming invented the first practical electron tube called the 'Fleming Valve', which is a diode rectifier. In 1906, Lee de Forest invented the audion later called the triode, which provided signal amplification.


7. When was the first lawn mower invented?



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Correct Ans:1830
Explanation:
The first lawn mowers were not engine powered. Invented in 1830 by Edwin Budding of England, the mowers were turning blades on wooden sticks used to cut grass. Engine powered mowers were not invented until 1919 by an American Army colonel, who used the motor from a washing machine.


8. When was Monopoly created?



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Correct Ans:1930
Explanation:
After the Stock Market crash, a buying and selling game created by Charles Darrow came to be. The first games were hand drawn on linoleum with streets from Atlantic City, N.J. as the property. He took the game to the Parker Brothers company, and Monopply was brought out for Christmas 1934. Everyone wanted to buy the games after Christmas, and Monopoly became a big success.


9. This part-time race car driver invented the bucket seat in 1969. Who was he??



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Correct Ans:steve mcqueen
Explanation:
McQueen died in 1980 from a rare form of lung cancer.


10. What Benjamin Franklin invented?



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Correct Ans:bifocal spectacles
Explanation:
Invented in 1760.

A list of Benjamin Franklin's inventions reveals a man of many talents and interests. It was the scientist in Ben that brought out the inventor. His natural curiosity about things and the way they work made him try to find ways to make them work better.

Ben had poor vision and needed glasses to read. He got tired of constantly taking them off and putting them back on, so he decided to figure out a way to make his glasses let him see both near and far. He had two pairs of spectacles cut in half and put half of each lens in a single frame. Today, we call them bifocals.


11. What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?



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Correct Ans:remote control
Explanation:
The first wireless remote control for television was called Flashmatic. (Remember when you had to get up to change the channel?)


12. What Galileo invented?



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Correct Ans:thermometer
Explanation:
Various authors have credited the invention of the thermometer to Cornelius Drebbel, Robert Fludd, Galileo Galilei or Santorio Santorio. The thermometer was not a single invention, however, but a development.

Galileo Galilei also discovered that objects (glass spheres filled with aqueous alcohol) of slightly different densities would rise and fall, which is nowadays the principle of the Galileo thermometer (shown). Today such thermometers are calibrated to a temperature scale.


13. When was barb wire patented?



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Correct Ans:1874
Explanation:
Joseph F. Glidden was born in New York on Jan. 18, 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, Gidden became known as the "Father of Barbed Wire".


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



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Correct Ans:1950
Explanation:
On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild.


15. Who invented the BALLPOINT PEN?



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Correct Ans:Biso Brothers
Explanation:
The Hungarian brothers, Laszlo and George Biro, made the first ball point pen in 1894. It followed the first workable fountain pen which was invented by L.E. Waterman in 1884



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