Exercise 2

Question 6 :

What Henry Bessemer invented?


A). Aluminum
B). Electroplating
C). Steel Converter
D). Steel rolling mill
Answer : Option C

Explanation :

Invented in 1856.


Question 7 :

What invention was first installed at a Hartford, Connecticut bank in 1889?


A). Automatic teller machine
B). Time-lock safe
C). Burglar alarm
D). Pay telephone
Answer : Option D

Explanation :

William Gray, inventor of the pay telephone, also invented the inflatable chest protector worn by baseball umpires and catchers.


Question 8 :

Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?


A). Golf tee
B). Motorboat
C). Water skis
D). Hang glider
Answer : Option C

Explanation :

The new item was first used on Lake Pepin in Minnesota.


Question 9 :

Who invented Bifocal Lens?


A). Alfred B. Nobel
B). Thomas Alva Edison
C). Benjamin Franklin
D). Rudolf Diesel
Answer : Option C

Question 10 :

What Karl Benz invented?


A). Gasoline powered automobile
B). Streetcar
C). Glider
D). Steam turbine
Answer : Option A

Explanation :

Invented in 1885.