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- Question
What George Westinghouse invented?
Options- A. Electric razor
- B. Light bulb
- C. Railway air brakes
- D. Refrigerator
- Correct Answer
- Railway air brakes
- 1. Typewriter was invented by
Options- A. Shockley
- B. Sholes
- C. Howe
- D. None of these Discuss
- 2. Fax machine was invented by
Options- A. Daimler
- B. Dewar
- C. Bain
- D. None of these Discuss
- 3. Stethoscope was invented by
Options- A. Bessemer
- B. Rane Laennec
- C. Henry Becquarrel
- D. none of these Discuss
- 4. When were bar code scanners invented?
Options- A. 1940s
- B. 1950s
- C. 1960s
- D. 1970s Discuss
- 5. Who invented logarithms?
Options- A. Mandeleef
- B. Shockley
- C. Amundson
- D. John Napier Discuss
- 6. Which scientist discovered the radioactive element radium?
Options- A. Isaac Newton
- B. Marie Curie
- C. Benjamin Franklin
- D. None of these Discuss
- 7. Who Invented Piano ?
Options- A. Bartolomeo Cristofori di Francesco
- B. Ruth Graves Wakefield
- C. Adolf Gaston Eugen Fick
- D. Jacques Cousteau Discuss
- 8. Who Invented Microwave Oven ?
Options- A. Lewis Edson Waterman
- B. Levi Strauss
- C. Percy LeBaron Spencer
- D. Sir Sandford Fleming Discuss
- 9. Who is the inventor of railway engine?
Options- A. George Stephenson
- B. W.H.F Talbot
- C. Richard Trevithik
- D. Eli Whitney Discuss
- 10. It travels over land and water. Who invented the HOVERCRAFT?
Options- A. C. Cockerell
- B. S. Sperrow
- C. O. Stricheg
- D. T. Henman Discuss
Inventions problems
Search Results
Correct Answer: Sholes
Correct Answer: Bain
Correct Answer: Rane Laennec
Correct Answer: 1970s
Correct Answer: John Napier
Correct Answer: Marie Curie
Correct Answer: Bartolomeo Cristofori di Francesco
Correct Answer: Percy LeBaron Spencer
Correct Answer: Richard Trevithik
Correct Answer: C. Cockerell
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