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Materials and Construction

Materials and Construction
The softest material just next to talc in the Mho's scale is

Fluorite
Gypsum
Feldspar
Quartz

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Materials and Construction
When iron is rusted, it is

Converted to a fine powder
Reduced
None of these
Oxidised

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Materials and Construction
High speed cutting tool steels contain about __________ percent of tungsten.

30-35
18-20
43990
50-55

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Materials and Construction
Materials having __________ lattice structure are usually most ductile.

c.c.
H.c.p.
Cubic
F.c.c.

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Materials and Construction
Cold worked steel parts are normally subjected to

Shot peening
Normalising
Hardening
Annealing

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Materials and Construction
Rubber lined vessels are corroded by the action of

Aqua regia
Sulphuric acid (95%)
All of these
Chloroform

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