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Materials and Construction

Materials and Construction
Anodic material used for the cathodic protection of underground buried steel pipeline is

Bronze
Zinc or magnesium
Brass
Nickel or copper

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Materials and Construction
The softest material in Mho's scale (for measuring hardness) is

None of these
Gypsum
Rubber
Talc

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Materials and Construction
In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of

Rubber lined steel
Cast iron
Stainless steel
Lead lined steel

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Materials and Construction
Presence of high phosphorous in cast iron increases its

Shrinkage
Fluidity
Melting point
Tensile strength

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Materials and Construction
Ceramic materials fabrication can not be done by

Plastic pressing
Extrusion
Slip casting
Welding

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Materials and Construction
Polymorphism is not exhibited by

None of these
Carbon
Iron
Phosphorous

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