Inventions and Discoveries MCQs

Static General Knowledge

Inventions and Discoveries MCQs

Practice Inventions and Discoveries MCQs with answers and detailed explanations covering famous inventors, scientific discoveries, technological innovations, important inventions, groundbreaking research, Nobel-winning discoveries and contributions to science and technology frequently asked in SSC, Railway, Banking, UPSC, JKSSB, Police, Defence, Teaching and other competitive examinations.

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Question #241
The invention of the common high-pressure kitchen pressure cooker ('Digester') was invented by whom in 1679?
A. Denis Papin
B. James Watt
C. Blaise Pascal
D. Robert Boyle
Discuss
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Correct Answer: Option A

Explanation:
French physicist Denis Papin invented the steam digester, which raised boiling temperatures by trapping internal steam pressure.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #242
Who discovered the radioactive gas Radon in 1900?
A. Marie Curie
B. Ernest Rutherford
C. William Ramsay
D. Friedrich Ernst Dorn
Discuss
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Correct Answer: Option D

Explanation:
Friedrich Ernst Dorn discovered radon while studying the radioactive decay chain of radium emissions.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #243
The invention of the widely used computer programming language C was developed by whom at Bell Labs in 1972?
A. Dennis Ritchie
B. Guido van Rossum
C. Bjarne Stroustrup
D. James Gosling
Discuss
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Correct Answer: Option A

Explanation:
Dennis Ritchie created the C language to rewrite the Unix operating system, laying foundations for modern system software.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #244
Who discovered that electrical currents passing through solutions break down compounds chemically, formalizing the Laws of Electrolysis?
A. Alessandro Volta
B. Humphry Davy
C. Michael Faraday
D. Svante Arrhenius
Discuss
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Correct Answer: Option C

Explanation:
Michael Faraday established the quantitative laws of electrolysis, introducing terms like anode, cathode, and ion.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #245
The invention of the modern mechanical reaper, which automated grain harvesting, was patented by whom?
A. John Deere
B. Eli Whitney
C. Cyrus McCormick
D. James Hargreaves
Discuss
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Correct Answer: Option C

Explanation:
Cyrus McCormick patented the horse-drawn mechanical reaper in 1834, transforming agricultural output.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #246
Who discovered that the element Thorium is radioactive, independently of Marie Curie's tracking experiments?
A. Henri Becquerel
B. Ernest Rutherford
C. Gerhard Carl Schmidt
D. Otto Hahn
Discuss
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Correct Answer: Option C

Explanation:
Gerhard Carl Schmidt discovered thorium's radioactivity in 1898, publishing his findings just weeks before Marie Curie.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #247
The invention of the common electronic LED (Light Emitting Diode) operating in the visible light spectrum was developed by whom?
A. Shuji Nakamura
B. Theodore Maiman
C. Nick Holonyak
D. Thomas Edison
Discuss
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Correct Answer: Option C

Explanation:
Nick Holonyak invented the first practical visible-spectrum (red) light-emitting diode in 1962 while working at General Electric.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #248
Who discovered the primary mathematical theorem relating electrical charge distribution to net static electric fields?
A. Carl Friedrich Gauss
B. Charles-Augustin de Coulomb
C. James Clerk Maxwell
D. Michael Faraday
Discuss
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Correct Answer: Option A

Explanation:
Gauss's Law relates net electric flux through a closed boundary surface to the net enclosed chemical charge.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #249
The invention of the common mechanical steel plow configuration that allowed farming in tough prairie soil was engineered by whom?
A. Cyrus McCormick
B. Eli Whitney
C. Walter Hunt
D. John Deere
Discuss
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Correct Answer: Option D

Explanation:
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
Question #250
Who discovered the biological mechanism of cloning in mammals, producing 'Dolly the Sheep' in 1996?
A. Ian Wilmut and Keith Campbell
B. James Watson
C. Robert Edwards
D. Francis Crick
Discuss
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Correct Answer: Option A

Explanation:
Wilmut and Campbell successfully cloned an adult somatic cell using nuclear transfer methods at the Roslin Institute.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #251
The invention of the common chemical process for mass-producing high-grade steel from molten pig iron is named after whom?
A. Carl Wilhelm Siemens
B. Henry Bessemer
C. Andrew Carnegie
D. James Watt
Discuss
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Correct Answer: Option B

Explanation:
The Bessemer Process removes structural impurities via air blasting through molten iron matrices, decreasing production costs.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #252
Who discovered the presence of electrons within stable atomic configurations by modeling the 'Plum Pudding' atom?
A. Ernest Rutherford
B. John Dalton
C. J.J. Thomson
D. Niels Bohr
Discuss
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Correct Answer: Option C

Explanation:
J.J. Thomson proposed the model where small negatively charged electrons are embedded in a uniform sphere of positive charge.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #253
The invention of the highly efficient multi-plate safety storage match box strip containing antimony trisulfide was pioneered where?
A. United States
B. England
C. Sweden
D. Germany
Discuss
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Correct Answer: Option C

Explanation:
Swedish manufacturing optimization made safety matches affordable and standard globally during the 19th century.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #254
Who discovered the presence of the cosmic entity known as the black hole through mathematical solutions to General Relativity equations?
A. Subrahmanyan Chandrasekhar
B. Stephen Hawking
C. Karl Schwarzschild
D. Albert Einstein
Discuss
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Correct Answer: Option C

Explanation:
Karl Schwarzschild derived the exact solution for spherical non-rotating point mass objects in 1915, outlining the event horizon radius.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #255
The invention of the common mechanical rotary print engine that accelerated newspaper publishing was patented by whom?
A. Christopher Sholes
B. Johannes Gutenberg
C. William Caxton
D. Richard March Hoe
Discuss
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Correct Answer: Option D

Explanation:
Richard March Hoe invented the rotary type press in 1843, placing text matrices on revolving drums rather than flat tables.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #256
Who discovered the specific virus responsible for tobacco mosaic disease, launching the scientific discipline of Virology?
A. Alexander Fleming
B. Dmitri Ivanovsky and Martinus Beijerinck
C. Robert Koch
D. Louis Pasteur
Discuss
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Correct Answer: Option B

Explanation:
Ivanovsky found that infected extracts remain contagious after chamber porcelain filtration; Beijerinck termed the fluid agent a 'virus'.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #257
The invention of the common electric toaster mechanism was achieved using nichrome wire by whom?
A. Elisha Otis
B. Albert Marsh and George Schneider
C. Thomas Edison
D. Nikola Tesla
Discuss
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Correct Answer: Option B

Explanation:
Albert Marsh patented Nichrome resistance wire alloy, which enabled safe high-heat cycling within appliances like toasters.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #258
Who discovered the presence of the planet Jupiter's four largest satellite moons in 1610?
A. Johannes Kepler
B. Tycho Brahe
C. Galileo Galilei
D. Nicolaus Copernicus
Discuss
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Correct Answer: Option C

Explanation:
Galileo observed Io, Europa, Ganymede, and Callisto using his primitive refracting glass telescope.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #259
The invention of the first functional high-voltage electrostatic generator capsule was designed by whom?
A. Alessandro Volta
B. Michael Faraday
C. Robert J. Van de Graaff
D. Nikola Tesla
Discuss
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Correct Answer: Option C

Explanation:
Van de Graaff invented the high-potential belt-driven static generator in 1929 for particle acceleration experiments.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #260
Who discovered that certain elements change identities through radioactive transmutation, establishing the laws of radioactive decay?
A. Otto Hahn
B. Henri Becquerel
C. Ernest Rutherford and Frederick Soddy
D. Marie Curie
Discuss
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Correct Answer: Option C

Explanation:
Rutherford and Soddy formulated the decay transformation principles, proving elements naturally break down into different elements.
This question belongs to: Static General Knowledge Inventions and Discoveries

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