Miscellaneous (Part -2)

Total Questions: 58

31. Barometer was invented by-. [S.S.C. Online CHSL (T-1) 7.01.2017 (Shift-III)]

(a) Evangelista Torricelli
(b) Charles Xavier Thomas
(c) Edward Teller
(d) Gustav Tauschek

Correct Answer: (a) Evangelista Torricelli

Solution:Evangelista Torricelli became the first scientist to create a sustained vacuum and to discover the principle of a barometer.

Torricelli realized that the variation of the height of the mercury from day to day was caused by changes in the atmospheric pressure.
Torricelli built the first mercury barometer around 1644.

32. Which of the following is NOT correctly paired? [S.S.C. Online MTS (T-1) 14.10.2017 (Shift-2)]

(a) E. Torricelli - Barometer
(b) Neutron - James Chadwick
(c) Penicillin - P. Banting
(d) Revolver - Samuel Colt

Correct Answer: (c) Penicillin - P. Banting

Solution:Penicillin is an antibiotic, which was discovered by Alexander Fleming.

The other options in question are correctly matched.

33. Telephone exchange was invented by _____ . [S.S.C. Online CHSL (T-1) 10.01.2017 (Shift-III)]

(a) Tivadar Puskas
(b) Joseph Priestley
(c) Petrache Poenuru
(d) James Leonard Plampton

Correct Answer: (a) Tivadar Puskas

Solution:Tivadar Puskas was a Hungarian inventor and telephone pioneer who came up with the idea of a telephone exchange in 1877 while working with Thomas Edison.

The first experimental telephone exchange was built in Boston in 1877 based on his plans.
He later established telephone exchanges in Paris and Budapest and also invented the multiplex switchboard, which was crucial for the further development of telephone exchanges.

34. Who among the following was the inventor of the long distance telephone? [S.S.C. Online Stenographer 14.09.2017 (Shift-1)]

(a) Christopher Dack
(b) Niels Bohr
(c) Michael Pupin
(d) Alexander Graham Bell

Correct Answer: (d) Alexander Graham Bell

Solution:Alexander Graham Bell was the inventor of the long distance telephone.

35. Who invented the ceiling fan? [S.S.C. Online CHSL (T-1) 8.02.2017 (Shift-III)]

(a) Lloyd Groff Copeman
(b) Bartolomeo Cristofori
(c) Leonardo da Vinci
(d) Philip Diehl

Correct Answer: (d) Philip Diehl

Solution:In 1882, Philip Diehl, a German-American inventor who also worked with electric motors for Singer sewing machines, adapted one of his motors to power a fan with blades mounted on the ceiling.

This is widely recognized as the first electric ceiling fan.
He later patented his design in 1889 and even added a light fixture to it.

36. Who was famous for the invention of the vacuum pump in the 17th century and also pioneered the concept of the absolute vacuum of space, measured the weight of air and used air pressure to predict the weather? [S.S.C. Online CHSL (F-1) 08.06.2022 (Shift-1)]

(a) John Cockcroft
(b) Otto von Guericke
(c) Enrico Fermi
(d) Valerianus Magnus

Correct Answer: (b) Otto von Guericke

Solution:Otto von Guericke was a German scientist, inventor, and politician.

His groundbreaking experiments with the vacuum pump, most notably the Magdeburg hemispheres demonstration in 1654, dramatically illustrated the power of air pressure and helped to establish the understanding of vacuum.
His work was fundamental in the development of vacuum technology and atmospheric science.

37. Who invented the first modern electrical air conditioning unit? [S.S.C. Online MTS (T-1) 4.10.2017 (Shift-1)]

(a) Karl Benz
(b) Robert W. Wilson
(c) Willis Carrier
(d) Charles M. Hall

Correct Answer: (c) Willis Carrier

Solution:The first modern air conditioner was invented in 1902 by Willis Haviland Carrier, a skilled engineer who began experimenting with the laws of humidity control to solve an application problem at a printing plant in Brooklyn, New York.

38. Who invented LED? [S.S.C. Online CHSL (T-1) 30.01.2017 (Shift-II)]

(a) Chuck Hull
(b) Elias Howe
(c) Nick Holonyak
(d) Christiaan Huygens

Correct Answer: (c) Nick Holonyak

Solution:While the phenomenon of electroluminescence (where a material emits light when electricity is passed through it) was observed earlier, Nick Holonyak Jr., while working at General Electric in 1962, created the first LED that emitted visible red light.

This breakthrough paved the way for the development of LEDs in various colors and their widespread use in numerous applications today.

39. Arithmometer was invented by ______ . [S.S.C. Online CHSL (T-I) 10.01.2017 (Shift-1)]

(a) Evangelista Torricelli
(b) Charles Xavier Thomas
(c) Edward Teller
(d) Gustav Tauschek

Correct Answer: (b) Charles Xavier Thomas

Solution:The Arithmometer, invented by Charles Xavier Thomas de Colmar in 1820, was the first commercially successful calculating machine capable of performing

addition,
subtraction,
multiplication
and division.

40. Postage Meter was invented by _________ . [S.S.C. Online CHSL (T-I) 11.01.2017 (Shift-III)]

(a) Fyodor Pirotsky
(b) Arthur Pitney
(c) Fritz Pfleumer
(d) Stephen Perry

Correct Answer: (b) Arthur Pitney

Solution:Postage Meter was invented by Arthur Pitney.

He is best known as the father of the postage meter.

A postage meter is a mechanical device used to create and apply physical evidence of postage to mailed matter.

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