Q: What James Watt invented?

1. Steam boat
2. Rotary steam engine
3. Diving bell
4. Hot air balloon

Q: What Elisha Otis invented?

1. Jet engine
2. Escalator
3. Turbine
4. Elevator

Q: Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent?

1. Banjo
2. Harmonium
3. Oboe
4. Clarinet

Q: What George Pullman invented?

1. Airship
2. Sleeping (railway) car
3. Box car (railway)
4. Air brakes

Q: What Benjamin Franklin invented?

1. Hygrometer
2. Barometer
3. Radio
4. Bifocal spectacles

Q: What Henry Bessemer invented?

1. Electroplating
2. Aluminum
3. Steel Converter
4. Steel rolling mill

Q: Who invented Gunpowder?

1. Sir Frank Whittle
2. Roger Bacon
3. Leo H Baekeland
4. G. Ferdinand Von Zeppelin

Q: Who invented Dynamite?

1. Alfred B. Nobel
2. Thomas Alva Edison
3. Benjamin Franklin
4. Sir Alexander Graham Bell

Q: Who invented fuel cells in 1839?

1. Sir William Grove
2. Buckminster Fuller
3. Sylvester Graham
4. Joyce Hall

Q: Who invented Bifocal Lens?

1. Benjamin Franklin
2. Rudolf Diesel
3. Thomas Alva Edison
4. Alfred B. Nobel

Q: Who invented Automobiles using gasoline?

1. Evangelista Torricelli
2. Karl Benz
3. Leo H Baekeland
4. Kirkpatrick Macmillan

Q: Who invented Electronic Computer?

1. Lewis E. Waterman
2. Dr. Alan M. Turing
3. Evangelista Torricelli
4. Sir Frank Whittle

Q: Who invented Bakelite?

1. Henry Ford
2. Leo Hendrik Baekeland
3. Charles Goodyear
4. Roy Plunkett

Q: Who invented Ball-Point Pen?

1. Roger Bacon
2. Dr. Alan M. Turing
3. John J. Loud
4. Otto