General knowledge Material- all Competitive

It travels over land and water. Who invented the HOVERCRAFT?
  1. S. Sperrow
  2. O. Stricheg
  3. O. Stricheg
  4. C. Cockerell
Who invented Dynamite?
  1. Sir Alexander Graham Bell
  2. Benjamin Franklin
  3. Thomas Alva Edison
  4. Alfred B. Nobel
What African-American inventor received 5 patents in the field of shoemaking?
  1. Elijah McCoy
  2. Jan Ernst Matzeliger
  3. Ernest Just
  4. Lewis Latimer
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. Oboe
  3. Clarinet
  4. Harmonium
What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
  1. Microwave oven
  2. Remote control
  3. VCR
  4. Calculator
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