General Knowledge
INVENTIONS MCQs
Total Questions : 214
| Page 3 of 22 pages
Answer: Option A. -> Robert Oppenheimer
Leslie R. Groves, however, was the military head of the project and the overall supremo, while Robert Oppenheimer was the scientific director. The world's first atomic bomb was exploded in the New Mexico desert on July 16, 1945.
Leslie R. Groves, however, was the military head of the project and the overall supremo, while Robert Oppenheimer was the scientific director. The world's first atomic bomb was exploded in the New Mexico desert on July 16, 1945.
Answer: Option D. -> Mary Kies
Mary was not the first American woman inventor to be sure, there were many female inventors before her, but they never bothered to get a patent.
Mary was not the first American woman inventor to be sure, there were many female inventors before her, but they never bothered to get a patent.
Answer: Option C. -> Waterbed
Waterbed was invented by California furniture designer Charles Prior Hall in 1968.
Waterbed was invented by California furniture designer Charles Prior Hall in 1968.
Answer: Option D. -> Play-Doh
Play-Doh was invented by Joe McVicker in 1956.
Play-Doh was invented by Joe McVicker in 1956.
Answer: Option D. -> Thomas Alva Edison
Gramophone was invented by Thomas Edison, Emile Berliner and Eldridge R. Johnson. Gramophone is also known as phonograph.
Gramophone was invented by Thomas Edison, Emile Berliner and Eldridge R. Johnson. Gramophone is also known as phonograph.
Answer: Option C. -> Television
Vladimir Zworykin, in full Vladimir Kosma Zworykin, (born July 29 [July 17, Old Style], 1888, Murom, Russia—died July 29, 1982, Princeton, New Jersey, U.S.), Russian-born American electronic engineer and inventor of the iconoscope and kinescope television systems.
Vladimir Zworykin, in full Vladimir Kosma Zworykin, (born July 29 [July 17, Old Style], 1888, Murom, Russia—died July 29, 1982, Princeton, New Jersey, U.S.), Russian-born American electronic engineer and inventor of the iconoscope and kinescope television systems.
Answer: Option D. -> Harmonium
Ben also holds a lot of firsts - first U.S. ambassador, first political cartoonist, first American philosopher, organized the first fire department, and on and on.
Ben also holds a lot of firsts - first U.S. ambassador, first political cartoonist, first American philosopher, organized the first fire department, and on and on.
Answer: Option C. -> Philippines
The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines.
The yo-yo was first used by hunters as weapons. They were wooden disks on strings. In the 1920s, a man from the U.S. named Donald Duncan made the yo-yo into a toy after he visited the Philippines.
Answer: Option A. -> The brake used in modern elevators
In 1853, American inventor Elisha Otis demonstrated a freight elevator equipped with a safety device to prevent falling in case a supporting cable should break. This increased public confidence in such devices. Otis established a company for manufacturing elevators and patented (1861) a steam elevator.
Many people think that he invented the elevator, but the truth is, he invented the elevator brake. He also invented the railway safety brake.
In 1853, American inventor Elisha Otis demonstrated a freight elevator equipped with a safety device to prevent falling in case a supporting cable should break. This increased public confidence in such devices. Otis established a company for manufacturing elevators and patented (1861) a steam elevator.
Many people think that he invented the elevator, but the truth is, he invented the elevator brake. He also invented the railway safety brake.
Answer: Option B. -> Electric streetcar
Thomas Davenport (9 July 1802 – 6 July 1851) was a Vermont blacksmith who constructed the first American DC electric motor in 1834.
Thomas Davenport (9 July 1802 – 6 July 1851) was a Vermont blacksmith who constructed the first American DC electric motor in 1834.
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