General Awareness · Science General

Inventors and Scientific Discoveries

4,616 Questions

This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.

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Inventors and Scientific Discoveries Questions

Multiple choice
  1. Louis Pasteur

  2. Garbiel Fahrenheit

  3. Lord Kelvin

  4. Robert Boyle

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lord Kelvin (William Thomson) proposed the absolute temperature scale where 0 K equals -273.15°C (rounded to -273°C). He developed the concept of absolute zero based on theoretical work on thermodynamics. Louis Pasteur worked in microbiology, Fahrenheit developed the mercury thermometer scale, and Boyle worked on gas laws.

Multiple choice
  1. Henry Becquerel

  2. Charles Darwin

  3. James Joule

  4. Henry Cavendish

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Henry Cavendish discovered hydrogen in 1766. He isolated the gas by reacting metals with acids and called it 'inflammable air'. Later, Lavoisier named it hydrogen.

Multiple choice
  1. Michael Faraday

  2. Nikola Tesla

  3. James Watt

  4. John Logie Baird

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

John Logie Baird is credited with inventing the first working television in the 1920s. He demonstrated the first mechanical TV system in 1926, though electronic TV was later developed by others.

Multiple choice
  1. reassorted

  2. amplified

  3. camouflaged

  4. reduplicated

  5. transistorized

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This sentence is based on genetics, which implies that discrete units or genes pass on characters from parents to offsprings and in second and later generations exhibit these characters in all possible combinations i.e. they assort themselves in all combinations. Hence, (1) is the answer.

Multiple choice
  1. Gustave Effel

  2. Gulliver

  3. Abraham Lincon

  4. General Manekshaw

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gustave Eiffel was the French engineer who designed the famous Eiffel Tower in Paris, completed in 1889. The tower was named after him. The question contains a spelling variation (Effel vs Eiffel).

Multiple choice
  1. F.W. Taylor

  2. F.M. Taylor

  3. M.F. Taylor

  4. Henry Fayol

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Frederick Winslow Taylor (F.W. Taylor) developed scientific management, focusing on efficiency, time-motion studies, and optimizing worker productivity. Henry Fayol developed administrative theory with 14 principles of management.

Multiple choice
  1. Robert Hook

  2. Leuwenhoek

  3. Splanzni

  4. Jenner

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antonie van Leeuwenhoek, a Dutch scientist, crafted powerful single-lens microscopes and was the first to observe and describe microorganisms. While Robert Hooke also worked with microscopes, Leeuwenhoek is specifically credited with developing the simple microscope.

Multiple choice
  1. Edmond Leyland

  2. Lewis Benz

  3. Lawrence Richie

  4. Blaise Pascal

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blaise Pascal, the renowned French mathematician and philosopher, is credited with founding the first public bus service in 1662. He developed a system of horse-drawn carriages that operated on fixed routes and schedules. The other individuals listed were not involved in the creation of public transit.

Multiple choice
  1. Rutherford

  2. Darwin

  3. Priestley

  4. Mendel

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Joseph Priestley is credited with the discovery of oxygen in 1774 by heating mercuric oxide. Although Carl Wilhelm Scheele discovered it earlier, Priestley published his findings first.

Multiple choice
  1. Mendel

  2. Newton

  3. Rutherford

  4. Darwin

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gregor Mendel, an Augustinian friar, is known as the father of genetics for his experiments with pea plants. He established the laws of segregation and independent assortment, which explain how traits are passed from parents to offspring.

Multiple choice
  1. Dennis Ritchie

  2. Ken Thompson

  3. Bill Gates

  4. Bjarne Stroustrup

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

C++ was developed by Bjarne Stroustrup in 1979. Hence, this is the correct answer.