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

Who gave theory about embryo evolution?

  1. Darwin

  2. Lamarck

  3. Haeckel

  4. Dobzhansky

  5. -
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The theory of recapitulation is often expressed in Ernst Haeckel's phrase 'ontogeny recapitulates phylogeny'. Ontogeny is the history of development of embryo.

Multiple choice

POSDCORB was coined using the initial letters of management function by

  1. Koontz O’Donnel

  2. Luther Gulick

  3. Peter F. Drucker

  4. Henry Mintzberg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Luther Gulick coined the word POSDCORB using the initial letters of management functions: planning (P), organising (O), staffing (S), directing (D), coordinating (CO), reporting (R), and budgeting (B).

Multiple choice

Not only human beings and the animal world are sensitive to heat, cold, light and noise, but also plants are sensitive to such feelings. The man who proved this was Sir Jagdish Chander Bose. Which of the following would not be an example of such a reference?

  1. Charles Darwin – the Theory of the Gravitation of the earth

  2. A.P.J. Abdul Kalam Azad – the missile man

  3. Jawahar Lal Nehru – gave the message of Panchsheel

  4. Mahatma Gandhi – Raj Ghat
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Correct option is (1).

Multiple choice

Ben Franklin started America's first _______________. One of the most important Americans in history Benjamin Franklin was an inventor and businessperson in the early part of his life. The Pennsylvania Gazette(newspaper) was run by him and he also published the Poor Poor Richard�s Almanac which forecasted the future and included astute sayings. As an inventor he is credited for the invention of Franklin stove, bifocals and lightening rod. He was also behind opening the first library in America. However, his achievement which gained him the maximum popularity was the kite experiment which demonstrated and proved the it was possible to harness electricity from lightening. In the later part of his life , Franklin was drawn towards politics. He facilitated Jefferson in writing the Declaration of Independence. He joined hands with the Continental Congress and signed the Constitution. His picture appears on the dollar note today and he is honored on highways, schools and businesses all over America.

  1. Newspaper

  2. Lightening rod

  3. Bifocals

  4. Library

  5. -
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

He was also behind opening the first library in America.

Multiple choice

Which of the following did Ben Franklin not do? One of the most important Americans in history Benjamin Franklin was an inventor and businessperson in the early part of his life. The Pennsylvania Gazette(newspaper) was run by him and he also published the Poor Poor Richard�s Almanac which forecasted the future and included astute sayings. As an inventor he is credited for the invention of Franklin stove, bifocals and lightening rod. He was also behind opening the first library in America. However, his achievement which gained him the maximum popularity was the kite experiment which demonstrated and proved the it was possible to harness electricity from lightening. In the later part of his life , Franklin was drawn towards politics. He facilitated Jefferson in writing the Declaration of Independence. He joined hands with the Continental Congress and signed the Constitution. His picture appears on the dollar note today and he is honored on highways, schools and businesses all over America.

  1. Become president.

  2. Politics

  3. Help with the Declaration of Independence.

  4. Sign the Constitution.

  5. -
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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