105.
In which decade was the ARRL founded?
A. 1940s B. 1930s
C. 1920s D. 1910s
Answer & Explanation
Answer: Option D
Explanation:
On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.
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106.
Who invented the Seed Drill?
A. Jethro Tull
B. Arlo Guthrie
C. Woodie Guthrie
D. Thomas Hines
Answer & Explanation
Answer: Option A
Explanation:
It was invented around the early 1700’s.
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107.
What drink was invented by Charles Leiper Grigg in 1929?
A. 7-Up B. Yoo-Hoo
C. Pepsi D. Hawaiian Punch
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108.
For what is Charles Babbage (1792-1871) remembered?
A. Computers B. Telescopes
C. Radio-Telegraphy D. Steam Boating
Answer & Explanation
Answer: Option A
Explanation:
Know as the Father of Computing. He began his ‘Analytical Engine’ in 1833. The first computer, although he never completed it.
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109.
Who invented Automobiles using gasoline?
A. Leo H Baekeland
B. Karl Benz
C. Evangelista Torricelli
D. Kirkpatrick Macmillan
Answer & Explanation
Answer: Option B
Explanation:
No answer description available for this question. Let us discuss.
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110.
Who invented the battery?
A. John Wilkinson
B. Alessandro Volta
C. James Hargreaves
D. Thomas Edison
Answer & Explanation
Answer: Option B
Explanation:
He was an Italian scientist, and he invented the battery in 1800.
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111.
Where were wigs first invented?
A. Japan B. France
C. Egypt D. China
Answer & Explanation
Answer: Option C
Explanation:
As you have noticed in pictures, many Egyptians have head coverings, sometimes with beads in them. The first wigs were created to cover the head from the hot sun.
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112.
Who was the first person to patent the JET ENGINE?
A. F. Whittle
B. C. Lindbergh
C. W. Histell
D. B. Owings
Answer & Explanation
Answer: Option A
Explanation:
British inventor Frank Whittle was the first to patent his design for a jet engine in 1930. Although an engine designed by Dr. Hans Von Ohain was the first to fly in 1939. Whittle’s jet engine first flew in 1941.