Inventions - Questions (Section-1)
1In which decade was the first solid state integrated circuit demonstrated?
A. 1950sB. 1960s
C. 1970s D. 1980s
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2This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel.
A. George WashingtonB. Alexander Hamilton
C. John Adams D. Thomas Jefferson
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3What Galileo invented?
A. BarometerB. Pendulum clock
C. Microscope D. Thermometer
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4What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?
A. Charles RichterB. Hiram Walker
C. Giuseppe Mercalli D. Joshua Rumble
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5What J. B. Dunlop invented?
A. Pneumatic rubber tireB. Automobile wheel rim
C. Rubber boot D. Model airplanes
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6When was barb wire patented?
A. 1874B. 1840
C. 1895 D. 1900
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7Which scientist discovered the radioactive element radium?
A. Isaac NewtonB. Albert Einstein
C. Benjamin Franklin D. Marie Curie
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8Who invented the BALLPOINT PEN?
A. Biro BrothersB. Waterman Brothers
C. Bicc Brothers D. Write Brothers
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