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- Question
Who Invented Elevator Safety Brake ?
Options- A. Alfred Bernhard Nobel
- B. Elisha Graves Otis
- C. Percy LeBaron Spencer
- D. Garrett Augustus Morgan
- Correct Answer
- Elisha Graves Otis
- 1. Who invented Gramophone?
Options- A. Michael Faraday
- B. Fahrenheit
- C. Alexander Graham Bell
- D. Thomas Alva Edison Discuss
- 2. 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
- 3. 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
- 4. What Thomas Davenport invented?
Options- A. Screw propellor
- B. Electric streetcar
- C. Chesterfield
- D. Sleeping (railway) car Discuss
- 5. Streptomycin was invented by
Options- A. Fleming
- B. Marie Curie
- C. Walksman
- D. None of these Discuss
- 6. Who is the inventor of printing press?
Options- A. Johann Gutenberg
- B. William Lee
- C. George Eastman
- D. R.W Thomson Discuss
- 7. Who is the inventor of railway engine?
Options- A. George Stephenson
- B. W.H.F Tablot
- C. Richard Trevithik
- D. Eli Whitney Discuss
- 8. Who Invented the First Adhesive Tape ?
Options- A. Richard GurleyDrew
- B. Alexander Graham Bell
- C. James Rineose
- D. Caresse Crosby Discuss
- 9. Who invented Radar ? Discuss
- 10. Which among the following is not correctly matched?
Options- A. Parachute: W H carothers
- B. Barometer: Torricelli
- C. Cells: Robert Hooke
- D. X- Ray: W Roentgen Discuss
Inventions problems
Search Results
Correct Answer: Alexander Graham Bell
Correct Answer: Ouija board
Correct Answer: Waterbed
Correct Answer: Screw propellor
Correct Answer: Walksman
Correct Answer: Johann Gutenberg
Correct Answer: Richard Trevithik
Correct Answer: Richard GurleyDrew
Correct Answer: Robert Watson Watt
Correct Answer: Parachute: W H carothers
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