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Chemical Engineering Basics

Chemical Engineering Basics
Grain hardness is measured by the __________ hardness testing method.

Rockwell F
Shore sceleroscope
Vicker's
Knoop

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Chemical Engineering Basics
Presence of small quantity of sulphur in low carbon steel improves its

Formability
Machinability
Weldability
Hardenarality

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Chemical Engineering Basics
Which of the following will resist maxi-mum shock & vibration without cracking?

Malleable iron
White cast iron
Graphite
Grey cast iron

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Chemical Engineering Basics
Atomic __________ of an element is a whole number.

Radius
Weight
Volume
Number

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Chemical Engineering Basics
In age-hardenable alloys, maximum ductility is obtained

After optimum ageing
In as cast state
After overageing
Immediately after solution treatment and subsequent quenching

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Chemical Engineering Basics
Coke is added in the blast furnace to

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

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