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Materials and Construction

Materials and Construction
To improve the machinability of steel by its softening, it is subjected to

Heating
Annealing
Cold working
Shot blasting

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Materials and Construction
Which of the following has the highest compressive strength?

Cast iron
High carbon steel
Wrought iron
Mild steel

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Materials and Construction
Cermets are __________ materials.

Reinforced
Refractory
Abrasive
Fully metallic

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Materials and Construction
A metallic alloy in general as compared to their pure metal components is

Having lower hardness, reactivity and fusibility
Having lower electrical conductivity
More corrosion resistant
Having higher melting point

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Materials and Construction
Which of the following crystal structures characterises the austenitic stainless steel?

None of these
Body centred cubic
Simple hexagonal
Face centred cubic

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Materials and Construction
Residual magnetism in steel for magnets is increased by the addition of

Nickel
Cobalt
Chromium
Tungsten

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