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Chemical Engineering Basics

Chemical Engineering Basics
Specific __________ is a dimensionless quantity.

Heat
Humidity
None of these
Weight

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Chemical Engineering Basics
Which of the following heat treatment processes is usually applied to castings ?

Tempering
Carburising
Normalising
Annealing

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Chemical Engineering Basics
Lead is added to 60:40 brass primarily to improve

Machinability
Fluidity
Corrosion resistance
Strength

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

Vicker's
Rockwell F
Knoop
Shore sceleroscope

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re0.8, Re-0.5
Re0.5, Re0.8
Re-0.8, Re0.5
Re0.8, Re0.5

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Chemical Engineering Basics
__________ iron is produced by the annealing of white cast iron.

Ductile
Grey
Malleable
Nodular

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