Q: What James Watt invented?

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

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. Banjo
2. Harmonium
3. Clarinet
4. Oboe

Q: What George Pullman invented?

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

Q: What Benjamin Franklin invented?

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

Q: What Henry Bessemer invented?

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

Q: Who invented Gunpowder?

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

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

Q: Who invented Automobiles using gasoline?

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

Q: Who invented Electronic Computer?

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

Q: Who invented Bakelite?

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

Q: Who invented Ball-Point Pen?

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