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Materials and Construction

Materials and Construction
A material is able to retain the deformation permanently by virtue of its

Elasticity
Malleability
Ductility
Plasticity

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

Cast iron vessel
Stainless steel vessel
Mild steel drum
Masonry well

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Materials and Construction
Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of

Lead lined mild steel
Cast iron
Rubber lined mild steel
Aluminium

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Materials and Construction
Cermets are __________ materials.

Fully metallic
Abrasive
Reinforced
Refractory

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Materials and Construction
Cementite is

All of these
Characterised by an orthorhombic crystal structure
A compound of carbon and iron
Fe₃C chemically

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Materials and Construction
Thermosetting polymers are

Injection moulded
Cast molded
None of these
Extruded

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