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Materials and Construction

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

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

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Materials and Construction
Slow and progressive deformation of a material with time under constant stress is called

None of these
Creep
Resilience
Erosion

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Materials and Construction
German silver used for decorative purposes contains maximum percentage of

Nickel
Copper
Silver
Zinc

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Materials and Construction
Ceramic materials

Are poor electrical conductors due to lack of free electrons
Never exhibit polymorphism
All of these
Are exemplified by clay and mica

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Materials and Construction
Kel-F is a material, which is

All of these
Chemically known as polychlorotrifluor-oethylene (PTFE)
Having elastomeric properties
Having excellent chemical & high temperature resistance (upto 200°C)

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Materials and Construction
Glass is corroded by

Phosphoric acid
None of these
Fluorine (dry or wet)
Sulphuric acid

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