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GK Questions: Basic GK(Inventions & Inventors) – Set 3

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Hello Aspirants. Welcome to Online General Knowledge section in Affairs cloud, which is important for all the competitive exams. We have created Some questions related to Basic GK(Inventions & Inventors) !!!

  1. Who is the inventor of Thermometer ?
    1.Sir Thomas Allbutt
    2.Anders Celsius
    3.Daniel Gabriel Fahrenheit
    5.None of these
    Answer – 3.Daniel Gabriel Fahrenheit
    Explanation :
    Daniel Gabriel Fahrenheit (1686-1736) was the German physicist who invented the alcohol thermometer in 1709, and the mercury thermometer in 1714. In 1724, he introduced the temperature scale that bears his name – Fahrenheit Scale.

  2. The term “cosmic rays” was coined by ………….. who made measurements of ionization due to cosmic rays from deep under water to high altitudes and around the globe.
    1.Albert Einstein
    2.Robert Millikan
    3.Marie Curie
    4.Fritz Pfluemer
    5.None of these
    Answer – 2. Robert Millikan 
    Explanation :
    In the 1920s the term “cosmic rays” was coined by Robert Millikan who made measurements of ionization due to cosmic rays from deep under water to high altitudes and around the globe.
    Robert A. was an American experimental physicist honored with the Nobel Prize for Physics in 1923 for his measurement of the elementary electronic charge and for his work on the photoelectric effect.

  3. The Electric motor is invented by ………………….
    1.William Sturgeon
    2.Emily Davenport
    3.Gay Lussac
    4.Michael Faraday
    5.None of these
    Answer – 4.Michael Faraday
    Explanation :
    An electric motor is an electrical machine that converts electrical energy into mechanical energy.
    Michael Faraday was an English scientist who contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis.

  4. Who invented the Hydrogen Bomb ?
    1.Edward Teller
    2.Emily Davenport
    3.Nicolaus Copernicus
    4.Enrico Fermi
    5.None of these
    Answer – 1.Edward

    Explanation :
    Edward Teller was a Hungarian-born American theoretical physicist who is known colloquially as “the father of the hydrogen bomb”.

  5. ……………………………. is the inventor of the electrical Battery
    1.Alfred Nobel
    2.Pierre Vernier
    3.Alessandro Volta
    4.Steven Sasson
    5.None of these
    Answer – 3.Alessandro Volta
    Explanation :
    Alessandro Volta was an Italian physicist, chemist, and a pioneer of electricity and power, who is credited as the inventor of the electrical battery and the discoverer of methane

  6. Digital Camera is invented by ……………………….
    1.Steven Sasson
    2.John Napier
    3.Joseph Niepce
    4.Rane Laennec
    5.None of these
    Answer – 1.Steven Sasson
    Explanation :
    Steven Sasson invented the first digital camera atEastman Kodak in 1975. It weighed 8 pounds (3.6 kg) and had only 0.01 megapixels. The image was recorded onto a cassette tape and this process took 23 seconds.

  7. Inventor of the first artificial Refrigerator is ………………………
    1.Wallace H. Coulter
    2.Johannes Gutenberg
    3.Thomas Crapper
    4.William Cullen
    5.None of these
    Answer – 4.William Cullen
    Explanation :
    Scottish professor William Cullen designed a small refrigerating machine in 1755. Cullen used a pump to create a partial vacuum over a container of diethyl ether, which then boiled, absorbing heat from the surrounding air

  8. In 1698 which English inventor developed the first steam engine?
    1.William Cullen
    2.Zacharias Janssen
    3.James Watt
    4.Otto Blathy
    5.None of these
    Answer – 3.James Watt
    Explanation :
    James Watt  was a Scottish inventor, mechanical engineer, and chemist whose Watt steam engine, an improvement of the Newcomen steam engine, was fundamental to the changes brought by the Industrial Revolution in the world

  9. In 1642……………….. inventedand build the first digitalcalculator as a means of helping his father perform tedious tax accounting
    1.Blaise Pascal
    3.HW Seeley
    4.KC Gillet
    5.None of these
    Answer – 1.Blaise Pascal
    Explanation :
    French Blaise Pascal invented the calculator. He did this to help his dad who was a tax adjuster. Then Gottfried Leibnitz improved on Pascal idea with a machine that would add, subtract, multiply, and divide.

  10. Who invented the JetEngine ?
    1.Percy Spencer
    2.Frank Whittle
    3.Adolph Rickenbacker
    4.Ralph H. Baer
    5.None of these
    Answer – 2.Frank Whittle
    Explanation :
    Air Commodore Sir Frank Whittle  was an English Royal Air Force(RAF) engineer air officer. He is credited with single-handedly inventing the turbojet engine(1937)