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

256.

Homoeography was invented by

Hahneman

Cockrell

Lipman

None of these

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257.

What inspired reflecting road lights to be invented?

Car door reflecting mirrors

The light a cat's eyes gave off on a fence

Sun light on steel posts on road sides

The sun light on the windshield

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258.

Who invented Dynamite?

Thomas Alva Edison

Benjamin Franklin

Sir Alexander Graham Bell

Alfred B Nobel

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259.

First graphical user interface used commercially after its introduction was popularized as

Apple Lisa

Xerox Star

IBM 610

Both (a) and (b)

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260.

Printing press was invented by

JohannesGutengerg

Mary Anderson

Victor Adler

George Antheil

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261.

Helicopter was invented by

Copernicus

Broquet

Drinker

None of these

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262.

What furniture item was invented by California furniture designer Charles Prior Hall in 1968?

Sofa bed

Captain's chair

Waterbed

Hammock

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263.

Who designed the city Chandigarh?

Colt

Ferdinand de lesseps

Nasser

Le Corbusier

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264.

Lift was invented by

Domagk

Lee De Forest

Otis

None of these

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265.

The Solar System was discoverd by

Copernicus

Galleleo

Finsen

None of these

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266.

World's first mechanical air conditioner was invented and manufacture by

Christopher Shole

Charles Perkins

Charles Goodyear

William's Carrier

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267.

In which decade was the transistor invented?

1940s

1950s

1960s

1980s

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268.

Who invented the first controllable flying AEROPLANE (AIRPLANE)?

Wright Brothers

Lidenbergh Brothers

South Brothers

West Brothers

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269.

Vulcanised rubber was invented by

J.E.Lundstrom

William Stockes

Charles Goodyear

Sir Joseph Swann

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270.

In which decade with the first transatlantic radio broadcast occur?

1850s

1860s

1870s

1900s

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inventions mcq questions and answers for competitive exams