The invention of the common mechanical device known as the modern coin-operated parking meter was patented by whom? MCQ with Answer and Explanation

Question
The invention of the common mechanical device known as the modern coin-operated parking meter was patented by whom?
A. Garrett Morgan
B. James Ritty
C. Walter Hunt
D. Carl Magee
Answer: Option D
Solution (By JKSSB Mock Tests)
Carl Magee patented the 'Park-O-Meter' in Oklahoma City in 1935 to regulate downtown vehicle traffic turnover.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered the first human virus ever identified, the Yellow Fever virus?
A. Dmitri Ivanovsky
B. Walter Reed and his team
C. Louis Pasteur
D. Robert Koch
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Correct Answer: Option B

Explanation:
The U.S. Army Yellow Fever Commission led by Walter Reed isolated and proved the disease was caused by a filterable virus vector.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the common mechanical marine escape capsule configuration was engineered by whom?
A. Robert Fulton
B. Cornelis Drebbel
C. Alexander Mitchell
D. John Ericsson
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Correct Answer: Option A

Explanation:
Fulton optimized underlying physical buoyancy balances, generating early blueprints for underwater tracking and marine transport apparatus.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered that light waves produce alternating dark and bright line bands when passing through two adjacent slits, establishing interference?
A. Isaac Newton
B. Augustin Fresnel
C. Christiaan Huygens
D. Thomas Young
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Correct Answer: Option D

Explanation:
Thomas Young conducted his famous Double-Slit Experiment in 1801, providing strong evidence for the wave theory of light.
This question belongs to: Static General Knowledge Inventions and Discoveries
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