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Materials and Construction

Materials and Construction
Sheardising process is used for

None of these
Cold working on metals
Surface coating
Heat treatment of high speed steel

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Materials and Construction
Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.

Cobalt
Nickel
Tungsten
Chromium

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Materials and Construction
Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)

Are used for leaf and coiled springs
Is tempered at 850°C
Do not require heat treatment for any of its applications
Do not have good resilience properties

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Materials and Construction
Brass tubes are used in the manufacture of tubes of evaporators used in sugar and salt industries, mainly because of its

High co-efficient of thermal expansion
All of these
Low thermal conductivity
High corrosion resistance

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Materials and Construction
__________ is added in stainless steel to prevent inter crystal corrosion.

Nickel
Chromium
Niobium
Vanadium

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Materials and Construction
Which is an amorphous material?

Glass
Mica
Cast iron
Brass

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