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Chemical Engineering Basics

Chemical Engineering Basics
Which of the following welding processes employs the highest welding temperature ?

Gas welding
Resistance welding
Thermit welding
Arc welding

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Chemical Engineering Basics
The phenomenon of strain-ageing is generally experienced with

High carbon steel
Low carbon steel
Cast iron
High manganese steel

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Chemical Engineering Basics
Swaging is a/an __________ operation.

Drawing
Piercing
Forging
Extrusion

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Chemical Engineering Basics
Coke is added in the blast furnace to

Reduce & melt the iron ore
Increase the fluidity of slag
Remove sulphur & phosphorus from molten metal
None of these

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Chemical Engineering Basics
Dezincification is a form of corrosion, which specifically applies to

Babbit metal
Steel
Brass
Stainless steel

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Chemical Engineering Basics
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

0.44
0.25
0.33

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