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Materials and Construction

Materials and Construction
Stainless steel is not corroded by

Sulphuric acid (10%)
Saturated brine
Nitric acid (10%)
Hydrochloric acid (10%)

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

4
8
2
0.2

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Materials and Construction
Nickel (56%) and molybdenum (17%) alloys are called

Monel
Hastealloy C
Bronzes
Inconel

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Materials and Construction
In SO₃ absorber (Contact Process), packing material used is of

Mild steel
Cast iron
Chemical stoneware
Karbate

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Materials and Construction
Which has the maximum melting point out of the following?

Stainless steel
Cast iron
Steel
Wrought iron

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Materials and Construction
Plastics are

Used in very high temperature applications
Non-biodegradable
All of these
Not suitable for drainage pipe manufacture

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