Who invented the first successful gas mask used widely in industrial safety and military applications? MCQ with Answer and Explanation

Who invented the first successful gas mask used widely in industrial safety and military applications?
A. Alexander Fleming
B. Garrett Morgan
C. Nikola Tesla
D. Thomas Edison
Answer: Option B
Solution (By JKSSB Mock Tests)
African-American inventor Garrett Morgan patented the safety hood/smoke protector device in 1914, which laid the foundation for modern gas masks.

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Practice More Inventions and Discoveries Questions

Question #1
The invention of the common electronic operating layout known as the Graphical User Interface (GUI) was pioneered by which lab?
A. Microsoft
B. IBM Research
C. Apple Computers
D. Xerox PARC

Correct Answer: Option D


Explanation:
Xerox Palo Alto Research Center (PARC) engineered the Alto computer featuring mouse-driven windows, menus, and file icons.

Question #2
Who discovered the element Potassium via electrolytic extraction shortly after isolating Sodium?
A. Jöns Jacob Berzelius
B. Antoine Lavoisier
C. Humphry Davy
D. Michael Faraday

Correct Answer: Option C


Explanation:
Sir Humphry Davy isolated potassium in 1807 by running current through molten caustic potash ($KOH$).

Question #3
The process of pasteurization to destroy harmful microbes in milk and wine was developed by whom?
A. Joseph Lister
B. Robert Koch
C. Alexander Fleming
D. Louis Pasteur

Correct Answer: Option D


Explanation:
French chemist Louis Pasteur developed the heating process known as pasteurization in the 1860s.