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Chemical Engineering Basics

Chemical Engineering Basics
For hardening high alloy steel, it is to be heated slowly and uniformly to avoid

Warpage
Segregation
Scale formation
Local hardening

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

Cementite
Nodular aggregates of graphite
Spheroids
Flakes

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

Weight
Number
Volume
Radius

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Chemical Engineering Basics
Oxyacetylene reducing flame is used while carrying out welding on

Mild steel
Alloy steel
Grey cast iron
High carbon steel

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Chemical Engineering Basics
Paint spray gun works on the principle of

Bernoulli's theorem
None of these
Newton's law of viscosity
Boyle's law

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Chemical Engineering Basics
A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

300
150
200
400

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