Who invented Bicycle?
Answer: D
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In which decade did television become widely available around the world?
Answer: B
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Who invented Bifocal Lens?
Answer: C
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Electronic instrument which is used to measure alkalinity or acidity of a liquid was invented by
Answer: D
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We remember Charles Babbage (1792-1871) for what ?
Answer: A
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Who was the first person to patent the JET ENGINE?
Answer: A
British inventor Frank Whittle was the first to patent his design for a jet engine in 1930. Although an engine designed by Dr. Hans Von Ohain was the first to fly in 1939. Whittle's jet engine first flew in 1941.
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In which decade was the telegraph invented?
Answer: B
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What invention caused many deaths while testing it?
Answer: D
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Who designed the city Chandigarh?
Answer: D
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Radium was discovered by
Answer: C
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