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Inventions-General Knowledge questions and answers

5 months ago 197.5K Views
Q :  

Who invented 'Portland Cement'?

(A) Michael Faraday

(B) Guglielmo Marconi

(C) Joseph Aspdin

(D) Isaac Newton

Correct Answer : C
Explanation :

Joseph Aspdin discovered 'Portland cement' in the year 1824. He produced cement by heating powdered limestone and mixing it with clay in a furnace. Later, grinding the clinker to a powder. He thus named the product “Portland Cement”.


Q :  

By whom was bacteriophage discovered?

(A) Felix de Herrell and Frederic Twort

(B) Kluywer and Niel

(C) Paul Ehrlich

(D) Burrill and Smith

Correct Answer : A

Q :  

Who invented the electric bulb?

(A) Thomas More

(B) Thomas Alva Edison

(C) James Watt

(D) None of these

Correct Answer : B

Q :  

Myrmecology is the study of what?

(A) Insect

(B) Ants

(C) Crustacean

(D) Arthropods

Correct Answer : B

Q :  

Who discovered 'linkage'?

(A) Blackslee

(B) Morgan

(C) Mueller

(D) Bateson

Correct Answer : D

Q :  

Name the branch of zoology in which the scientific study of animal behaviour is done.

(A) Ecology

(B) Physiology

(C) Bio-ecology

(D) Anatomy

Correct Answer : C

Q :  

Who among the following was the leader of the team that developed the “web browser” named Mosaic?

(A) Mark Anderson

(B) Bob Kahn

(C) Paul Mokapetris

(D) Tim Berners-Lee

Correct Answer : A

Q :  

Who among the following person is associated with the creation of "Pentium Chip"?

(A) Arun Netravalli

(B) Sabeer Bhatia

(C) C. Kumar Patel

(D) Vinod Dham

Correct Answer : D

Q :  

How is the purity of milk measured?

(A) hydrometer

(B) lactometer

(C) stalagmometer

(D) Thermometer

Correct Answer : B

Q :  

Which of the following machines was made by Charles Babbage?

(A) Analytical Engine

(B) Arithmetic Engine

(C) Tabulation device

(D) Punched card

Correct Answer : A

 

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