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Materials and Construction

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

Highly
Mildly
Least
Not

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Materials and Construction
Addition of __________ in steel can help in increasing the depth of hardness.

Vanadium
Chromium
Nickel
Tungsten

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Materials and Construction
Copper has very low

Tensile strength
Malleability
Thermal & electrical conductivity
Ductility

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Materials and Construction
Balls in a ball mill are usually made of

Stainless steel
Steel
Cast iron
Bronze

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Materials and Construction
Hardened steel is softened by

Annealing
Tempering
Carburising
Normalising

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Materials and Construction
Which of the following undergoes granular fracture?

Cast iron
Wrought iron
Steel
None of these

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