The invention of the common electric toaster mechanism was achieved using nichrome wire by whom? MCQ with Answer and Explanation

The invention of the common electric toaster mechanism was achieved using nichrome wire by whom?

A. Nikola Tesla

B. Albert Marsh and George Schneider

C. Thomas Edison

D. Elisha Otis

Answer: Option B

Albert Marsh patented Nichrome resistance wire alloy, which enabled safe high-heat cycling within appliances like toasters.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1 Report Error

The discovery of the mechanism of the greenhouse effect in the atmosphere is first attributed to which scientist?

A. Svante Arrhenius

B. Joseph Fourier

C. Guy Stewart Callendar

D. John Tyndall

Correct Answer: Option B

Explanation:
Joseph Fourier recognized in 1824 that Earth's atmosphere acts like an insulator, warming the planet's surface.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2 Report Error

Who discovered that atomic elements possess unique magnetic configuration properties that line split inside specialized oven beam devices?

A. Otto Stern and Walther Gerlach

B. Niels Bohr

C. Wolfgang Pauli

D. Werner Heisenberg

Correct Answer: Option A

Explanation:
The Stern-Gerlach experiment in 1922 physically demonstrated spatial quantization and electron spin attributes.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3 Report Error

The invention of the common mechanical cash register to prevent employee theft was patented by whom in 1879?

A. Elisha Otis

B. Christopher Sholes

C. James Ritty

D. Walter Hunt

Correct Answer: Option C

Explanation:
Saloon owner James Ritty designed 'Ritty's Incorruptible Cashier' after observing the revolutions of a ship's propeller tracker.

This question belongs to: Static General Knowledge Inventions and Discoveries