The Hovercraft was invented by which British engineer? MCQ with Answer and Explanation

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The Hovercraft was invented by which British engineer?

A. Frank Whittle

B. John Logie Baird

C. James Dyson

D. Christopher Cockerell

Answer: Option D

Solution (By JKSSB Mock Tests)

Sir Christopher Cockerell invented the hovercraft (amphibious craft supported by a cushion of air) in 1956.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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Who discovered that the chemical element Argon exists as an unreactive atmospheric component, launching the noble gas group?

A. Daniel Rutherford

B. Henry Cavendish

C. Joseph Priestley

D. Lord Rayleigh and William Ramsay

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Correct Answer: Option D

Explanation:
Rayleigh and Ramsay isolated argon in 1894 by removing all oxygen, nitrogen, and carbon dioxide from air samples.

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Question #2

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The discovery of the cosmic rays was rewarded with a Nobel Prize to which physicist?

A. Robert Millikan

B. Arthur Compton

C. Carl Anderson

D. Victor Hess

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Correct Answer: Option D

Explanation:
Victor Hess discovered cosmic radiation by taking ionization monitoring instruments up in high-altitude balloon flights between 1911 and 1913.

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Question #3

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Who discovered that the chemical element Calcium is isolated via electrolysis of lime and mercuric oxide mixtures?

A. Joseph Black

B. Humphry Davy

C. Antoine Lavoisier

D. Jöns Jacob Berzelius

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Correct Answer: Option B

Explanation:
Sir Humphry Davy isolated elemental calcium metal in 1808 using a mercury-cell electrolysis setup.

This question belongs to: Static General Knowledge Inventions and Discoveries

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