The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name?
A. John Christopher Ballantyne
B. Joseph Cyril Bamford
C. John Christopher Baxter
D. Jack Croxford Baker
Answer: Option B
A. John Christopher Ballantyne
B. Joseph Cyril Bamford
C. John Christopher Baxter
D. Jack Croxford Baker
Answer: Option B
Who invented the ballpoint pen?
A. Biro Brothers
B. Waterman Brothers
C. Bicc Brothers
D. Write Brothers
In which decade was the first solid state integrated circuit demonstrated?
A. 1950s
B. 1960s
C. 1970s
D. 1980s
A. Pneumatic rubber tire
B. Automobile wheel rim
C. Rubber boot
D. Model airplanes
Which scientist discovered the radioactive element radium?
A. Isaac Newton
B. Albert Einstein
C. Benjamin Franklin
D. Marie Curie
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