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Materials and Construction

Materials and Construction
Silicone rubber is not resistant to the corrosive action of

Sulphuric acid (95%)
Sulphuric acid (10%)
Both B and C
Ether

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Materials and Construction
The hardest material just prior to diamond in Mhos scale is

Topax
Calcite
Carborundum
Corrundum

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Materials and Construction
Valves in pipe size of 2" and under are normally made of

Monel
Bronze
Wrought iron
Brass

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Materials and Construction
Among the tin containing alloys, __________ consumes the maximum amount of tin.

White metal
Bronzes
Pewter matal
Solder

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Materials and Construction
Cast iron has

High malleability
Very high tensile strenth
Elastic limit close to ultimate breaking strength
High ductility

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Materials and Construction
Hydrochloric acid is __________ corrosive to common metals.

Not
Highly
Least
Mildly

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