GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ethyl gasoline
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Radar
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Sonar
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Jet propulsion
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Detailed explanation-1: -This is one of the first turbojet engines. British engineer Sir Frank Whittle patented his pioneering design in 1932. The engine first flew on the E. 28/39 in 1941 marking the unofficial first flight of a British jet aircraft.
Detailed explanation-2: -By October 1929, Whittle had considered using a fan enclosed in the fuselage to generate a fast flow of air to propel a plane at high altitude. A piston engine would use too much fuel, so he thought of using a gas turbine. After the Air Ministry turned him down, he patented the idea himself.
Detailed explanation-3: -Air Commodore Sir Frank Whittle, OM, KBE, CB, FRS, FRAeS (1 June 1907 – 8 August 1996) was an English engineer, inventor and Royal Air Force (RAF) air officer. He is credited with having invented the turbojet engine.