inventions mcq questions and answers for competitive exams

Posted on Jun 9, 2022 10:12 PM - 2 years ago

inventions mcq questions and answers for competitive exams UPSC SSC , SSC CGL, upsc Civils , Entrance exams Online test practice online free Quiz, mock practice online

91.

Which of the following inventions were done by Thomas Alva Edison?

Incandescent lamp

Phonograph C (Gramophone) and microphone

Carbon telephone transmitters

All of these

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92.

The four blood groups were discovered by

Emil Kraepelin

Frederick Soddy

Francis Galton

Trofim Lysenko

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93.

Which insurance salesman invented the fountain pen in 1884?

Lewis Edson Waterman

Sir William Grove

Charles Kettering

George Fountain

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94.

World Wide Web was publicly introduced for first time in

1967

1990

1945

1937

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95.

The field of activity of J. C Bose was

Botany

Chemistry

Biology

None of these

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96.

Who invented the BALLPOINT PEN?

Biro Brothers

Waterman Brothers

Bicc Brothers

Write Brothers

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97.

What drink was invented by Charles Leiper Grigg in 1929?

7-Up

Yoo-Hoo

Pepsi

Hawaiian Punch

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98.

First electric DC motor was invented by

George Stephenson

FrankJulian Sprague

Percy Spencer

None of these

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99.

Facebook was made in

2004

2006

2008

2010

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100.

Gun powder was invented in 9th century in

Ming Dynasty China

Tang Dynasty China

Yuan Dynasty China

Song Dynasty China

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101.

Telegraph Code was invented by

Robert Arthur Moog

Harlow Bundy

Hans Lippershey

Samuel F. B Morse

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102.

Insulin was discovered by:

Donald Reagan

Alexander Flaming

Fredrick Banting

Fredrick Sanger

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103.

Cholera Bascillus was invented by

Robert Koch

Hoffman

Dunlop

Joseph Lister

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104.

The theory of Evolution was produced by

Newton

Einstein

Mendel

Drawin

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105.

What African-American inventor received 5 patents in the field of shoemaking?

Elijah McCoy

Jan Ernst Matzeliger

Ernest Just

Lewis Latimer

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inventions mcq questions and answers for competitive exams