27) The limestone in the charge of a blast furnace decomposes to give lime and carbon dioxide. The lime thus obtained
Answer is:
forms a slag by combining with impurities
Related Engineering Materials MCQ with Answers
Answer is:
all of the above
Explanation:
The slag from the blast furnace
* is used as a ballast for rail road
* is mixed with tar for road making
* consists of calcium, aluminum and ferrous silicates
Answer is:
cast iron
Explanation:
Cupola Furnace is a melting device which used to melt cast iron, Bronze and other alloying elements are melted. It is mainly used to convert pig iron to cast iron.
Cupola furnace is employed for melting scrap metal or pig iron for production of various cast irons. It is also used for production of nodular and malleable cast iron.
Answer is:
soft and gives a coarse grained crystalline structure
Answer is: