The invention of the common medical diagnostic device known as the blood pressure cuff (Sphygmomanometer) was optimized by whom? MCQ with Answer and Explanation

Question

The invention of the common medical diagnostic device known as the blood pressure cuff (Sphygmomanometer) was optimized by whom?

A. Scipione Riva-Rocci and Harvey Cushing

B. Joseph Lister

C. Willem Einthoven

D. René Laennec

Answer: Option A

Solution (By JKSSB Mock Tests)

Riva-Rocci introduced the mercury arm-cuff design in 1896, and neurosurgeon Harvey Cushing popularized it globally.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that electric fields can split light spectral lines, a physical phenomenon known as the Stark Effect?

A. Max Planck

B. Pieter Zeeman

C. Johannes Stark

D. Hendrik Lorentz

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Correct Answer: Option C

Explanation:
Johannes Stark discovered the electric splitting of hydrogen spectral lines in 1913, winning the 1919 Nobel Prize in Physics.

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Question #2

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The invention of the common mechanical windshield wiper for automobiles was patented by whom?

A. Stephanie Kwolek

B. Josephine Cochrane

C. Mary Anderson

D. Henry Ford

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Correct Answer: Option C

Explanation:
Mary Anderson patented the manual lever-operated windshield clearing arm in 1903 after watching streetcars struggle in sleet storms.

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Question #3

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The first practical steam-powered water pump, known as the 'Miner's Friend', was invented by whom in 1698?

A. James Watt

B. Richard Trevithick

C. Thomas Newcomen

D. Thomas Savery

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Correct Answer: Option D

Explanation:
Thomas Savery patented the first commercial steam-driven machine to pump water out of flooded mines.

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