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Chemical Engineering Basics

Chemical Engineering Basics
Carbon is present in the form of __________ in grey cast iron.

Nodular aggregates of graphite
Spheroids
Cementite
Flakes

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Chemical Engineering Basics
Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

Hexagonal close, packed (hcp)
Face centred cubic (fcc)
Simple cubic
Body centred cubic (bcc)

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

Grey cast iron
Malleable iron
Graphite
White cast iron

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Chemical Engineering Basics
Super conduction in metals is observed at a temperature of __________ °K.

>100
About 373
About 273

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

Vicker's
Knoop
Rockwell F
Shore sceleroscope

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Chemical Engineering Basics
Dies for wire drawing are generally made of

High carbon steel
Stainless steel
Carbides
Mild steel

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