Inventions problems
- 1. The first thermionic valve was invented by
Options- A. Thomas Edison
- B. Richardson
- C. J.A. Fleming
- D. Lee De Forest Discuss
Correct Answer: J.A. Fleming
- 2. Telegrahic code was introduced by
Options- A. Lipman
- B. Macmillan
- C. Thomas Moore
- D. Cockrell Discuss
Correct Answer: Thomas Moore
- 3. Toricelli invented
Options- A. Automobile
- B. Barometer
- C. Stethoscope
- D. None of these Discuss
Correct Answer: Barometer
- 4. Streptomycin was invented by
Options- A. Fleming
- B. Marie Curie
- C. Walksman
- D. None of these Discuss
Correct Answer: Walksman
- 5. What Thomas Davenport invented?
Options- A. Screw propellor
- B. Electric streetcar
- C. Chesterfield
- D. Sleeping (railway) car Discuss
Correct Answer: Screw propellor
- 6. What furniture item was invented by California furniture designer Charles Prior Hall in 1968?
Options- A. Sofa bed
- B. Captain's chair
- C. Waterbed
- D. Hammock Discuss
Correct Answer: Waterbed
- 7. What ?game? was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892?
Options- A. Frisbee
- B. Monopoly
- C. Ouija board
- D. Ping Pong Discuss
Correct Answer: Ouija board
- 8. Who invented Gramophone?
Options- A. Michael Faraday
- B. Fahrenheit
- C. Alexander Graham Bell
- D. Thomas Alva Edison Discuss
Correct Answer: Alexander Graham Bell
- 9. Who Invented Elevator Safety Brake ?
Options- A. Alfred Bernhard Nobel
- B. Elisha Graves Otis
- C. Percy LeBaron Spencer
- D. Garrett Augustus Morgan Discuss
Correct Answer: Elisha Graves Otis
- 10. Who is the inventor of printing press?
Options- A. Johann Gutenberg
- B. William Lee
- C. George Eastman
- D. R.W Thomson Discuss
Correct Answer: Johann Gutenberg
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