GENERAL KNOWLEDGE

GK

INVENTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Used to make steel quickly and cheaply by injecting air into iron to remove impurities.
A
Carnegie Process
B
Bessemer Process
C
Rockefeller Process
D
Drake Process
Explanation: 

Detailed explanation-1: -The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.

Detailed explanation-2: -The bessemer process reduces molten pig iron in so-called bessemer converters-egg-shaped, silica, clay, or dolomite-lined containers with capacities of 5 to 30 tons of molten iron. An opening at the narrow upper portion of the bessemer converter allows iron to be introduced and the finished product to be poured out.

Detailed explanation-3: -: a cast iron that contains not more than 0.10 percent of phosphorus and is suitable for the manufacture of Bessemer steel by the acid process.

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