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Chemical Engineering Basics

Chemical Engineering Basics
Castability of aluminium is increased by the addition of __________ in it.

Manganese
Lead
Bismuth
Silicon

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Chemical Engineering Basics
On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is

Tensile strength
Fatigue
Toughness
Creep

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Chemical Engineering Basics
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

23
25/2
23/2
21/3

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Chemical Engineering Basics
Coke is added in the blast furnace to

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

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Chemical Engineering Basics
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Austenite
Cementite
Martensite
Pearlite

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Chemical Engineering Basics
Stretcher strains found in a low carbon sheet are associated with the

Dislocation density
Texture
Yield point phenomenon
Thickness of the sheet

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