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. Elevator
2. Turbine
3. Jet engine
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. Clarinet
2. Harmonium
3. Banjo
4. Oboe

Q: What George Pullman invented?

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

Q: What Benjamin Franklin invented?

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

Q: What Henry Bessemer invented?

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

Q: Who invented Gunpowder?

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

Q: Who invented Dynamite?

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

Q: Who invented fuel cells in 1839?

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

Q: Who invented Bifocal Lens?

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

Q: Who invented Automobiles using gasoline?

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

Q: Who invented Electronic Computer?

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

Q: Who invented Bakelite?

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

Q: Who invented Ball-Point Pen?

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