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 #141
The first practical steam-powered water pump, known as the 'Miner's Friend', was invented by whom in 1698?
A. Richard Trevithick
B. Thomas Newcomen
C. James Watt
D. Thomas Savery
Discuss
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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.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #142
Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment?
A. Niels Bohr
B. Ernest Rutherford
C. J.J. Thomson
D. John Dalton
Discuss
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Correct Answer: Option B

Explanation:
Ernest Rutherford discovered the dense, positively charged atomic nucleus in 1911 by firing alpha particles at thin gold sheets.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #143
Who invented the first mass-market portable music device, the Walkman, introduced by Sony in 1979?
A. Masaru Ibuka
B. Akio Morita
C. Steve Jobs
D. Nobutoshi Kihara
Discuss
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Correct Answer: Option D

Explanation:
Audio engineer Nobutoshi Kihara designed the Walkman under the direction of Sony co-founder Akio Morita.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #144
The chemical element Fluorine was first isolated after many hazardous attempts by which French chemist?
A. Henri Moissan
B. Marie Curie
C. Antoine Lavoisier
D. Joseph Louis Gay-Lussac
Discuss
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Correct Answer: Option A

Explanation:
Henri Moissan successfully isolated the highly reactive element fluorine in 1886 using electrolysis, winning the 1906 Nobel Prize in Chemistry.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #145
Who invented the first practical electronic digital computer with binary logic architecture, known as the Z3?
A. John von Neumann
B. Konrad Zuse
C. Alan Turing
D. Tommy Flowers
Discuss
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Correct Answer: Option B

Explanation:
German engineer Konrad Zuse completed the Z3 in 1941, recognized as the world's first functional program-controlled Turing-complete computer.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #146
Who discovered that light waves travel as transverse vibrations, contradicting the longitudinal wave model?
A. Augustin-Jean Fresnel and Thomas Young
B. Isaac Newton
C. James Clerk Maxwell
D. Christiaan Huygens
Discuss
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Correct Answer: Option A

Explanation:
Fresnel and Young demonstrated through polarization experiments that light waves propagate perpendicular to the direction of travel.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #147
The invention of the supercomputer was pioneered by which computer scientist who designed the CDC 6600?
A. Gene Amdahl
B. Seymour Cray
C. Alan Turing
D. John von Neumann
Discuss
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Correct Answer: Option B

Explanation:
Seymour Cray is known as the 'Father of Supercomputing' for designing the fastest operational systems of his era.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #148
Who discovered the phenomenon of specific heat capacity and latent heat in thermodynamics?
A. Lord Kelvin
B. Antoine Lavoisier
C. Joseph Black
D. James Joule
Discuss
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Correct Answer: Option C

Explanation:
Scottish chemist Joseph Black discovered latent heat and specific heat, laying foundations for thermodynamic science.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #149
The invention of the carbon-14 dating technique to determine the age of organic materials was developed by whom?
A. Willard Libby
B. Marie Curie
C. Ernest Rutherford
D. Otto Hahn
Discuss
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Correct Answer: Option A

Explanation:
Willard Libby led the team that developed radiocarbon dating in 1949, winning the 1960 Nobel Prize in Chemistry.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #150
Who discovered the first human virus ever identified, the Yellow Fever virus?
A. Dmitri Ivanovsky
B. Robert Koch
C. Walter Reed and his team
D. Louis Pasteur
Discuss
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Correct Answer: Option C

Explanation:
The U.S. Army Yellow Fever Commission led by Walter Reed isolated and proved the disease was caused by a filterable virus vector.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #151
The invention of the lead-acid rechargeable battery in 1859, still used in automobiles today, was done by whom?
A. Alessandro Volta
B. Gaston Planté
C. Thomas Edison
D. John Daniell
Discuss
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Correct Answer: Option B

Explanation:
French physicist Gaston Planté invented the lead-acid cell, the first chemical battery that could be recharged by reversing the current.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #152
Who discovered the fundamental genetic mechanism of 'jumping genes' (transposons) in maize?
A. Barbara McClintock
B. James Watson
C. Rosalind Franklin
D. Thomas Hunt Morgan
Discuss
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Correct Answer: Option A

Explanation:
Barbara McClintock discovered genetic transposition in the 1940s and received an unshared Nobel Prize in 1983.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #153
Who invented the slide rule, an analog computing tool used extensively before electronic calculators?
A. John Napier
B. Gottfried Leibniz
C. Blaise Pascal
D. William Oughtred
Discuss
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Correct Answer: Option D

Explanation:
William Oughtred invented the circular and rectilinear slide rule in the 1620s based on John Napier's logarithms.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #154
The discovery of the mechanism of the greenhouse effect in the atmosphere is first attributed to which scientist?
A. Joseph Fourier
B. John Tyndall
C. Svante Arrhenius
D. Guy Stewart Callendar
Discuss
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Correct Answer: Option A

Explanation:
Joseph Fourier recognized in 1824 that Earth's atmosphere acts like an insulator, warming the planet's surface.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #155
Who discovered the existence of the Van Allen Radiation Belts surrounding the Earth?
A. Wernher von Braun
B. Robert Goddard
C. James Van Allen
D. Carl Sagan
Discuss
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Correct Answer: Option C

Explanation:
James Van Allen discovered the zones of trapped charged particles around Earth using data from the Explorer 1 satellite in 1958.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #156
The first practical solar cell capable of converting significant sunlight into electricity was invented by whom at Bell Labs?
A. Charles Fritts
B. Theodore Maiman
C. Albert Einstein
D. Gerald Pearson, Calvin Fuller, and Daryl Chapin
Discuss
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Correct Answer: Option D

Explanation:
In 1954, Pearson, Fuller, and Chapin developed the silicon photovoltaic cell, achieving around 6% energy efficiency.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #157
Who discovered that the speed of light is constant in all inertial frames of reference, forming the basis of Special Relativity?
A. Hendrik Lorentz
B. Max Planck
C. Albert Einstein
D. Albert Michelson
Discuss
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Correct Answer: Option C

Explanation:
Albert Einstein postulated that the speed of light in a vacuum is invariant, irrespective of the motion of the source or observer.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #158
Who invented the first successful gas mask used widely in industrial safety and military applications?
A. Garrett Morgan
B. Nikola Tesla
C. Alexander Fleming
D. Thomas Edison
Discuss
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Correct Answer: Option A

Explanation:
African-American inventor Garrett Morgan patented the safety hood/smoke protector device in 1914, which laid the foundation for modern gas masks.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #159
The invention of the multi-stage flash distillation process for large-scale seawater desalination was pioneered by whom?
A. Humphry Davy
B. James Watt
C. Charles Parsons
D. Robert Silver
Discuss
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Correct Answer: Option D

Explanation:
Professor Robert Silver patented the highly efficient multi-stage flash distillation process in the late 1950s.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #160
Who discovered that plant chromosomes undergo meiosis and crossing over, establishing physical genetic maps?
A. Charles Darwin
B. Thomas Hunt Morgan
C. Gregor Mendel
D. Hugo de Vries
Discuss
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Correct Answer: Option B

Explanation:
Thomas Hunt Morgan demonstrated chromosome mapping and sex-linked inheritance using Drosophila melanogaster (fruit flies).
This question belongs to: Static General Knowledge Inventions and Discoveries

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Practice Mix
Who discovered the existence of the atomic nucleus through the famous Gold Foil Experiment?
Excluding institutional stops, a transit bus routes at 60 km/h and including stops it runs at 50 km/h. How many minutes does the bus stop per hour?
Select the most appropriate meaning of the idiom: 'Cloud cuckoo land'.
The 'Mumbai' is located on the:
Laspeyres price index uses weights of: