Q: What James Watt invented?

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

Q: What Elisha Otis invented?

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

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. Harmonium
2. Clarinet
3. Oboe
4. Banjo

Q: What George Pullman invented?

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

Q: What Benjamin Franklin invented?

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

Q: What Henry Bessemer invented?

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

Q: Who invented Gunpowder?

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

Q: Who invented Dynamite?

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

Q: Who invented fuel cells in 1839?

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

Q: Who invented Bifocal Lens?

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

Q: Who invented Automobiles using gasoline?

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

Q: Who invented Electronic Computer?

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

Q: Who invented Bakelite?

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

Q: Who invented Ball-Point Pen?

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