Q: What James Watt invented?

1. Rotary steam engine
2. Steam boat
3. Diving bell
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. Sleeping (railway) car
2. Box car (railway)
3. Air brakes
4. Airship

Q: What Benjamin Franklin invented?

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

Q: What Henry Bessemer invented?

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

Q: Who invented Gunpowder?

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

Q: Who invented Dynamite?

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

Q: Who invented fuel cells in 1839?

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

Q: Who invented Bifocal Lens?

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

Q: Who invented Automobiles using gasoline?

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

Q: Who invented Electronic Computer?

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

Q: Who invented Bakelite?

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

Q: Who invented Ball-Point Pen?

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