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Materials and Construction

Materials and Construction
Creep is not exhibited at low temperature by

Acrylics
Rubber
Plastics
Lead

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

50-55
18-20
30-35
43990

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Materials and Construction
All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain

Decreases in proportion to stress
Increases very quickly
Increases in proportion to stress
Decreases very quickly

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Materials and Construction
Clock pendulums are usually made of __________ steel.

None of these
Stainless
Heat resisting
High speed

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Materials and Construction
Manganese in steel affects its

None of these
Tensile strength
Ductility
Hardness

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Materials and Construction
The digester of a Gobar gas plant is a

Mild steel drum
Stainless steel vessel
Masonry well
Cast iron vessel

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