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GK Questions: Basic GK(Inventions & Inventors) – Set 4

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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 discovered the electricity ?
    1.Albert Einstein
    2.Thomas Edison
    3.Benjamin Franklin
    4.Gay Lussac
    5.None of these
    Answer – 3.Benjamin Franklin
    Explanation :
    Electricity is a form of energy and it occurs in nature, so it was not “invented.” As to who discovered it, many misconceptions abound. Some give credit to Benjamin Franklin for discovering electricity, but his experiments only helped establish the connection between lightning and electricity, nothing more.

  2. In 1928 Penicillin was discovered by ………………..
    1.R.A. Millikan
    2.Alexander Fleming
    3.Frederick Banting
    4.Benjamin Franklin
    5.None of these
    Answer – 2.Alexander Fleming
    Explanation :
    Penicillin was discovered in London in September of 1928 by Dr. Alexander Fleming

  3. Who discovered the insulin for diabetes ?
    1.Frederick Banting
    2.Benjamin Franklin
    3.Alexander Fleming
    4.Ernest Rutherford
    5.None of these
    Answer – 1.Frederick Banting 
    Explanation :
    Canadian physician Frederick Banting and medical student Charles H. Best discovered the hormone insulin in pancreatic extracts of dogs. On July 30, 1921, they injected the hormone into a diabetic dog and found that it effectively lowered the dog’s blood glucose levels to normal.

  4. Blood groups were discovered by ………………………
    1.Johannes Kepler
    2.Albert Einstein
    3.Karl Landsteiner
    4.Max Born
    5.None of these
    Answer – 3.Karl Landsteiner
    Explanation :
    The ABO blood group system is widely credited to have been discovered by the Austrian scientist Karl Landsteiner, who identified the O, A, and B blood types in 1900.

  5. Which was invented by Evangelista Torricelli ?
    5.None of these
    Answer – 4.Barometer
    Explanation :
    Evangelista Torricelli was an Italian physicist and mathematician, best known for his invention of the barometer, but is also known for his advances in optics and work on the method of Indivisibles
    A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather.

  6. ……………was an American physicist known as the inventor of the microwave oven.
    1.Ralph H. Baer
    2.Percy Lebaron
    3.Gary Starkweather
    4.Larry Page
    5.None of these
    Answer – 2.Percy Lebaron
    Explanation :
    Percy Lebaron Spencer was an American physicist and inventor. He became known as the inventor of the microwave oven.

  7. Who invented the Light Emitting Diode(LED) ?
    1.Zacharias Janssen
    2.Adolph Rickenbacker
    3.Nick Holonyak
    4.Percy Spencer
    5.None of these
    Answer – 3.Nick Holonyak
    Explanation :
    Nick Holonyak is an American engineer and educator. He is noted particularly for his 1962 invention of a light-emitting diode that emitted visible red light instead of infrared light.

  8. Who invented the air conditioners first in 1902 ?
    1.Willis Carrier
    2.Percy Spencer
    3.Rane Laennec
    5.None of these
    Answer – 1.Willis Carrier 
    Explanation :
    In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. After graduating from Cornell University, Carrier found a job at the Buffalo Forge Company.

  9. Elevator was invented by …………………………
    1.Elisha Otis
    2.Otto Blathy
    3.John Napier
    4.Charles Darwin
    5.None of these
    Answer – 1.Elisha Otis
    Explanation :
    Elisha Otis, who is generally known as the inventor of the modern elevator. In 1852, Otis came up with a design that had a safety “brake.”

  10. Which was invented by André-Marie Ampère ?
    5.None of these
    Answer – 2.Galvanometer
    Explanation :
    André-Marie was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as “electrodynamics”. The SI unit of measurement of electric current, the ampere, is named after him.
    A galvanometer is a type of sensitive ammeter. It is an instrument for detecting electric current.