Q70
What Frank Whittle invented?
A.
Radar
B.
Ethyl gasoline
C.
Sonar
D.
Jet propulsion
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Sir Frank Whittle, (born June 1, 1907, Coventry, Warwickshire, England—died August 8, 1996, Columbia, Maryland, U.S.), English aviation engineer and pilot who invented the jet engine.