The invention of the common mechanical steel plow configuration that allowed farming in tough prairie soil was engineered by whom? MCQ with Answer and Explanation

Question

The invention of the common mechanical steel plow configuration that allowed farming in tough prairie soil was engineered by whom?

A. John Deere

B. Eli Whitney

C. Cyrus McCormick

D. Walter Hunt

Answer: Option A

Solution (By JKSSB Mock Tests)

Blacksmith John Deere designed a highly polished self-scouring steel plow share blade in 1837.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The concept of absolute zero temperature and the thermodynamic scale was discovered by whom?

A. James Joule

B. Anders Celsius

C. Daniel Gabriel Fahrenheit

D. Lord Kelvin

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Correct Answer: Option D

Explanation:
William Thomson, later Lord Kelvin, proposed the absolute thermodynamic scale of temperature in 1848.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who discovered the law of hereditary transmission through experiments on pea plants?

A. Gregor Mendel

B. Jean-Baptiste Lamarck

C. Thomas Hunt Morgan

D. Charles Darwin

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Correct Answer: Option A

Explanation:
Gregor Mendel is known as the father of modern genetics for his discovery of the basic laws of heredity through breeding pea plants.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3

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Who invented the first practical modern typewriter with a QWERTY keyboard layout?

A. Thomas Edison

B. William Austin Burt

C. Pellegrino Turri

D. Christopher Latham Sholes

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Correct Answer: Option D

Explanation:
Christopher Latham Sholes invented the first commercially practical mechanical typewriter and developed the QWERTY keyboard layout to prevent jamming.

This question belongs to: Static General Knowledge Inventions and Discoveries

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