Invention and Inventors : General Knowledge Questions and Answers

Q31. Who Invented Dynamite Explosive Material?

[A] Percy LeBaron Spencer

[B] Alfred Bernhard Nobel

[C] Garrett Augustus Morgan

[D] Levi Strauss

Q32. What George Westinghouse invented?

[A] Railway air brakes

[B] Refrigerator

[C] Electric razor

[D] Light bulb

Q33. Which of the following rivers originates from Mahabaleshwar?

[A] Krishna

[B] Sabarmati

[C] Cauvery

[D] Tapi

Q34. Who Invented Elevator Safety Brake?

[A] Garrett Augustus Morgan

[B] Alfred Bernhard Nobel

[C] Elisha Graves Otis

[D] Percy LeBaron Spencer

650+ Inventions Quiz Questions and Answers

Q35. The first thermionic valve was invented by

[A] J.A. Fleming

[B] Thomas Edison

[C] Lee De Forest

[D] Richardson

Q36. When were bar code scanners invented?

[A] 1970s

[B] 1960s

[C] 1940s

[D] 1950s

Q37. The Solar System was discoverd by

[A] Copernicus

[B] Galleleo

[C] Finsen

[D] None of these

Q38. Streptomycin was invented by

[A] Walksman

[B] Marie Curie

[C] Fleming

[D] None of these

Q39. Analytical Engine was invented by

[A] Daimler

[B] Dewar

[C] Charles Babbage

[D] None of these

Q40. Stethoscope was invented by

[A] Bessemer

[B] Henry Becquarrel

[C] Rane Laennec

[D] None of these