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Materials and Construction

Materials and Construction
Gas holder of a gobar (cowdung) gas plant is made of

Aluminium
Mild steel
Molybdenum stainless steel
Tin

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Materials and Construction
A hardened steel essentially contains

Martensite
Troostite
None of these
Sorbite

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Materials and Construction
Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its

Compressive strength
Tensile strength
Corrosion resistance
Machinability

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Materials and Construction
__________ iron is produced, when molten pig iron is chilled suddenly.

Grey cast
None of these
Wrought
White cast

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Materials and Construction
Ceramic materials

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

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Materials and Construction
Which of the following is the most elastic material?

Rubber
Plastic
Glass
Steel

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