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Materials and Construction

Materials and Construction
Maximum carbon content in cast iron is __________ percent.

3.8
5.2
4.3
4.8

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Materials and Construction
Cast iron and steel pipes are produced by __________ casting.

True centrifugal
Investment
Die
Slush

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Materials and Construction
__________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working.

Twinning
Solid solution hardening
Screw dislocation
Strain ageing

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Materials and Construction
Specify the material of construction suitable for handling concentrated HNO₃ at 100°C.

Silicone rubber
Tin and wood
High silicon iron, Kel-F and teflon
Stainless steel

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Materials and Construction
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.

0.35
0.02
0.5
0.2

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Materials and Construction
Brine solution is stored/treated in __________ lined vessels/pipes.

Glass
Nickel
Lead
Rubber

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