General Knowledge - Inventions

Exercise : Inventions - Section 1
  • Inventions - Section 1
46.
For what does the world owe Almon Strowger a debt of gratitude?
Parking Meters
Vending Machines
Automatic Telephone Exchanges
Traffic Lights
Answer: Option
Explanation:
He was an undertaker, and legend has it, he developed the automatic switch in 1889, to stop competitors from getting his work!

47.
Who is often called the 'first African-American' inventor?
Bessie Blount
George Washington Carver
Benjamin Banneker
Elijah McCoy
Answer: Option
Explanation:
Banneker was a member of the planning committee that designed Washington, DC along with Pierre L'Enfant. When L'Enfant was fired Banneker recreated the plans from memory.

48.
The first hand glider was designed by...?
Leonardo DaVinci
The Wright brothers
Francis Rogallo
Galileo
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
In which decade was the telegraph invented?
1810s
1840s
1870s
1890s
Answer: Option
Explanation:
On May 24, 1844, Samuel Morse send his famous message, "What hath God wrought?"

50.
What inspired reflecting road lights to be invented?
Car door reflecting mirrors
The light a cat's eyes gave off on a fence
Sun light on steel posts on road sides
The sun light on the windshield
Answer: Option
Explanation:
In 1933, Englishman Percy Shaw was driving home when he saw a cat's eyes reflecting. He had been headed straight towards a fence with the cat on it, but on the other side was a drop of hundreds of feet.