The slag from the blast furnace

29) The cupola is used to manufacture

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.

30) Free carbon in iron makes the metal

soft and gives a coarse grained crystalline structure

soft and gives a fine grained crystalline structure

hard and gives a coarse grained crystalline structure

hard and gives a fine grained crystalline structure

Answer is:

soft and gives a coarse grained crystalline structure

Explanation:

31) Combined carbon in iron makes the metal

soft and gives a coarse grained crystalline structure

soft and gives a fine grained crystalline structure

hard and gives a coarse grained crystalline structure

hard and gives a fine grained crystalline structure

Answer is:

hard and gives a fine grained crystalline structure

Explanation:

32) Cast iron is manufactured in

Answer is:

cupola furnace

Explanation:

Cast iron is manufactured in Cupola furnace.

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.

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The slag from the blast furnace

all of the above

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Related Engineering Materials MCQ with Answers

29) The cupola is used to manufacture

cast iron

30) Free carbon in iron makes the metal

soft and gives a coarse grained crystalline structure

31) Combined carbon in iron makes the metal

hard and gives a fine grained crystalline structure

32) Cast iron is manufactured in

cupola furnace

For More Engineering Materials MCQ with Answers