The invention of the first practical steam engine, the atmospheric engine, was completed by whom? MCQ with Answer and Explanation

The invention of the first practical steam engine, the atmospheric engine, was completed by whom?

A. James Watt

B. Thomas Newcomen

C. Thomas Savery

D. George Stephenson

Answer: Option B

Thomas Newcomen constructed the first practical piston-driven condensing atmospheric engine in 1712 to pump water from mines.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1 Report Error

Who discovered that biological chromosomes carry the unique hereditary factor tracking layouts, establishing Chromosome Theory?

A. James Watson

B. Gregor Mendel

C. Walter Sutton and Theodor Boveri

D. Thomas Hunt Morgan

Correct Answer: Option C

Explanation:
Sutton and Boveri independently identified in 1902 that chromosome pairing and separation match Mendelian inheritance laws.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2 Report Error

Who discovered the presence of the complex radioactive element Plutonium in 1940?

A. Glenn T. Seaborg and his team

B. Otto Hahn

C. Lise Meitner

D. Enrico Fermi

Correct Answer: Option A

Explanation:
Glenn Seaborg, Edwin McMillan, Joseph Kennedy, and Arthur Wahl isolated plutonium-238 via deuteron bombardment of uranium.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3 Report Error

The invention of the modern calendar system used globally today, the Gregorian Calendar, was introduced by which pope in 1582?

A. Pope Urban II

B. Pope Gregory XIII

C. Pope Julius II

D. Pope Gregory VII

Correct Answer: Option B

Explanation:
Pope Gregory XIII decreed the modification of the older Julian calendar to fix errors regarding the length of the solar year.

This question belongs to: Static General Knowledge Inventions and Discoveries