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Who invented two-stroke engine in 1878?

(a) Dugald Clark

(b) Nikola Tesla

(c) Carl Sagan

(d) William Henry Bragg

I had been asked this question in exam.

The origin of the question is I.C. Engine Components in chapter Internal Combustion Engine of Farm Machinery

1 Answer

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Right option is (a) Dugald Clark

The explanation is: Nikola Tesla is best known for his contributions in the design of modern alternating current. Carl Sagan made crucial contributions in popularizing astronomy. Bragg invented the X-ray spectrometer.

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