scientist, discoveries & inventions MCQ section 3 Practice Questions Answers Test with Solutions & More Shortcuts
scientist, discoveries & inventions PRACTICE TEST [4 - EXERCISES]
scientist, discoveries & inventions MCQ section 1
scientist, discoveries & inventions MCQ section 2
scientist, discoveries & inventions MCQ section 3
scientist, discoveries & inventions MCQ section 4
Question : 11 [SSC GL 2014]
Name the branch of Zoology that deals with the scientific study of animal behaviour.
a) Anatomy
b) Ecology
c) Ethology
d) Physiology
Answer »Answer: (c)
Ethology is the scientific and objective study of animal behavior, usually with a focus on behavior under natural conditions. The term was first popularized by American myrmecologist (the study of ants) William Morton Wheeler in 1902.
Question : 12 [SSC CHSL 2014]
Who invented aeroplane ?
a) Wright Brothers
b) Edison
c) Hoffman
d) Stevenson
Answer »Answer: (a)
The Wright brothers, Orville and Wilbur, were two American brothers, who are credited with inventing and building the world’s first successful airplane on December 17, 1903. From 1905 to 1907, the brothers developed their flying machine into the first practical fixed-wing aircraft.
Question : 14 [SSC CML (Pre) 2008]
Who is associated with the invention of Nylon ?
a) Dr. Wallace H. Carothers
b) Louis Pasteur
c) John Corbutt
d) J. Nicephore Niepce
Answer »Answer: (b)
Wallace Hume Carothers was an American chemist, inventor and the leader of organic chemistry at DuPont, credited with the invention of nylon. He was a group leader at the DuPont Experimental Station laboratory, near Wilmington, Delaware, where most polymer research was done.
Question : 15 [SSC MTS 2014]
Radioactivity was discovered by
a) Einstein
b) Rutherford
c) Roentgen
d) Henri Becquerel
Answer »Answer: (d)
Antoine Henri Becquerel, a French physicist, was the discoverer of radioactivity along with Marie Sklodowska-Curie and Pierre Curie, for which all three won the 1903 Nobel Prize in Physics. Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability.
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