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

31.

Roentgen discovered

Anti polio vaccine

Electrocardiograph

X-Rays

Encephalograph

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32.

Napier invented what?

Glider

Radio Telegraphy

Logarithms

Quantum theeory

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33.

CORN FLAKES - Who made them first?

Nabisco

Kellogg

Quaker

Archers

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34.

First freely programmable computer in world was build by

Percy Spencer

Karl Benz

ConardZeus

George Stephenson

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35.

Type of resistor with electrical resistance inversely proportional to its temperature is invented by

SamuelRuben

George Ruben

George Morgan

Samuel Loughead

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36.

Who synthesized the first wholly artificial gene?

Hargobind Khorana

J.J. Thompson

Benjamin Franklin

Meghnad Saha

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37.

When was the game Frisbee invented?

1920s

1900s

1870s

1890s

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38.

The refrigerator was invented by

J.Perkins

Benjamin Franklin

Alexander Fleming

Albert Einstein

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39.

Who invented the battery?

Thomas Edison

John Wilkinson

Alessandro Volta

James Hargreaves

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40.

Integrated circuit was co-crated in

1948 1949

1958-1959

1935-1936

1976-1977

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41.

Internet protocol suite which created basis for modern internet was developed by

Floyd Farris and J. B Clark

Lisa Meitner and George Stephenson

Jack Kilby and Robert Noyce

VintonCerf and Robert(E) Kahn

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42.

For what is Charles Babbage (1792-1871) remembered?

Computers

Telescopes

Radio-Telegraphy

Steam Boating

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43.

Which vehicle was invented about 3000 BCE?

the helicopter

the space shuttle

the bicycle

the chariot

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44.

In which decade were the first successful diode and triode vacuum tubes invented?

1800s

1880s

1890s

1900s

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45.

What toy did George Lerner create for Hasbro company in 1952?

Sit and Spin

Talking baby doll

Mr. Potato Head

Hula hoop

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inventions mcq questions and answers for competitive exams