Inventions

61.What plaything was invented by Joe McVicker in 1956?
a.
b.
c.
d.

Option “D” is correct.
Play-Doh was invented by Joe McVicker in 1956.
62.Who was the first American female to patent her invention, a method of weaving straw with silk?
a.
b.Amanda Jones
c.
d.

Option “D” is correct.
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.
63.Who invented Gramophone?
a.
b.Fahrenheit
c.
d.

Option “D” is correct.
Gramophone was invented by Thomas Edison, Emile Berliner and Eldridge R. Johnson. Gramophone is also known as phonograph.
64.What furniture item was invented by California furniture designer Charles Prior Hall in 1968?
a.
b.
c.Waterbed
d.

Option “C” is correct.
Waterbed was invented by California furniture designer Charles Prior Hall in 1968.
65.The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project?
a.
b.
c.
d.

Option “A” is correct.
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.
66.When was the first elevator built?
a.1743
b.1739
c.1760
d.1785

Option “A” is correct.
The first elevator was built in the palace of King Louis XV in 1743. It only traveled up one floor, and was hand powered by men inside the chimney.
67.
What charge card, developed in 1950, was the first to be accepted nationally in the US?
a.Visa
b.Discover
c.Master Charge
d.

Option “D” is correct.
The card was invented by Frank McNamara and Ralph Schneider.
68.What Enrico Fermi invented?
a.
b.Betatron
c.Cyclotron
d.

Option “D” is correct.
Enrico Fermi ( 29 September 1901 – 28 November 1954) was an Italian (later naturalized American) physicist and the creator of the world’s first nuclear reactor, the Chicago Pile-1.
69.Which of the following was first patented by an Australian in 1889?
a.
b.
c.
d.

Option “A” is correct.
The Electric Drill was the invention of Arthur James Arnot. On 20 August 1889 he patented his design while working for the Union Electric Company in Melbourne. His original design was meant primarily for drilling rock to find coal.
70.Who among the following invented the small pox vaccine?
a.
b.
c.
d.

Option “B” is correct.
The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. He observed that milkmaids who previously had caught cowpox did not catch smallpox and showed that inoculated vaccinia protected against inoculated variola virus.
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