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Chemical Engineering Basics

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

Graphite
Grey cast iron
White cast iron
Malleable iron

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Chemical Engineering Basics
__________ of hard alloy and tool steel is done to make it easily machinable.

Case carburising
Normalising
Annealing
Tempering

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Chemical Engineering Basics
Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

Hot rolling
Casting
Forging
Cold rolling

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Chemical Engineering Basics
__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Zirconia
Magnesia
Beryllia
Alumina

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

Bismuth
Manganese
Silicon
Lead

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Chemical Engineering Basics
Powder metallurgy is used to produce

High precision components with complex cavities and sharp features
Components of large size
Porosity free components
Components of such alloys whose constituents do not form alloys readily

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