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Materials and Construction

Materials and Construction
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

8
4
0.2
2

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Materials and Construction
A magnetic material becomes __________ above the Curie temperature.

Paramagnetic
None of these
Diamagnetic
Ferromagnetic

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Materials and Construction
Evaporator used for concentrating tomato juice is made of

Nickel
Cast iron-rubber lined
Brass
Stainless steel-glass lined

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Materials and Construction
The largest consumption of zinc for alloys is in the making of

Bearing metal
Brasses
Brazing solder
Die casting alloys

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Materials and Construction
Which metal is protected by the layer of its own oxide?

Iron
Aluminium
Calcium
Silver

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Materials and Construction
Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

Nickel
Brass
Stainless steel
Copper

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