101. 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?
(a) Banjo
(b) Oboe
(c) Clarinet
(d) Harmonium
102. Who is often called the ‘first African-American’ inventor?
(a) Bessie Blount
(b) George Washington Carver
(c) Benjamin Banneker
(d) Elijah McCoy
103. What Frank Whittle invented?
(a) Radar
(b) Ethyl gasoline
(c) Sonar
(d) Jet propulsion
104. What Igor Sikorsky invented?
(a) Hydroplane
(b) Jet engine airplane
(c) Helicopter
(d) Glider
105. What George Pullman invented?
(a) Sleeping (railway) car
(b) Airship
(c) Box car (railway)
(d) Air brakes
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