36.

Which insurance salesman invented the fountain pen in 1884?
A. Lewis Edson Waterman B. Sir William Grove
C. Charles Kettering D. George Fountain
Answer and Explanation
Answer:A
Explanation: Lewis Edson Waterman patented the first practical fountain pen in 1884.
37.

When was the first elevator built?
A. 1743 B. 1739
C. 1760 D. 1785
Answer and Explanation
Answer:A
Explanation: The first elevator was built in the palace of King Louis XV. It only traveled up one floor, and was hand powered by men inside the chimney.
38.

What charge card, developed in 1950, was the first to be accepted nationally in the US?
A. Visa B. Discover
C. MasterCharge D. Diner's Club
Answer and Explanation
Answer:D
Explanation: The card was invented by Frank McNamara and Ralph Schneider.
39.

What Enrico Fermi invented?
A. X ray machine B. Betatron
C. Cyclotron D. Nuclear reactor
Answer and Explanation
Answer:D
Explanation: Invented in 1942.
40.

Which of the following was first patented by an Australian in 1889?
A. Electric Drill B. Electric Shaver
C. Electric Fence D. Electric Heater
Answer and Explanation
Answer:A
Explanation: The Electric Drill was the invention of Arthur James Arnot. On 20 August 1889 he patented his design while working for the Union Electric Company in Melbourne. His original design was meant primarily for drilling rock to find coal!