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Materials and Construction

Materials and Construction
Which of the following has the highest density and the lowest melting point?

Titanium
Lead
Aluminium
Stainless steel

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Materials and Construction
Chilled iron castings are

Highly wear resistant
Soft on surface
Easily machinable
None of these

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Materials and Construction
Mercury is transported in metal containers made of

Nickel
Lead
Aluminium
Iron

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Materials and Construction
Reduction in the grain size reduces the __________ of the material.

Creep resistance
Fatigue resistance
All of these
Tensile strength

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Materials and Construction
Condenser tubes are not made of

Aluminium brass alloy
Wood metal
Cartridge brass
Muntz brass

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Materials and Construction
Work hardening of a material

Does not affect its ductility
Decreases its ductility
Increases its ductility
Decreases its tensile strength

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