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Materials and Construction

Materials and Construction
Acetylene gas holder is made of

Cast iron
Steel
Monel metal
Copper

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Materials and Construction
A material no longer behaves elastically beyond

Elastic limit
Limiting load
Breaking load
Plastic limit

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Materials and Construction
In order to be called steel, an alloy should have iron percentage greater than

90
50
70
80

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Materials and Construction
To improve the machinability of steel by its softening, it is subjected to

Cold working
Shot blasting
Heating
Annealing

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Materials and Construction
The crystal structure of most of the common metals is

Hexagonal
Orthorhombic
Cubic
None of these

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

Stainless steel vessel
Cast iron vessel
Masonry well
Mild steel drum

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