GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the steamboat
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the gasoline engine
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the rocket engine
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all of the above
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Detailed explanation-1: -The main difference between them is that jets get the oxygen to burn fuel from the air and rockets carry their own oxygen, which allows them to operate in space. This also leads to a second major difference. Jet engines have two openings (an intake and an exhaust nozzle).
Detailed explanation-2: -He tested his first jet engine on the ground in 1937. This event is customarily regarded as the invention of the jet engine, but the first operational jet engine was designed in Germany by Hans Pabst von Ohain and powered the first jet-aircraft flight on August 27, 1939.
Detailed explanation-3: -Precursors. Jet engines can be dated back to the invention of the aeolipile around 150 BC. This device used steam power directed through two nozzles so as to cause a sphere to spin rapidly on its axis.