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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the most important element, which controls the physical properties of steel.

Carbon
Silicon
Vanadium
Manganese

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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.

200
300
150
400

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Chemical Engineering Basics
Air refrigeration cycle is used in the air crafts, because of

Low temperature encountered at high altitude
Its low unit weight per ton of refrigeration
Its high heat transfer rate
Its higher co-efficient of performance (COP)

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

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Chemical Engineering Basics
Which of the following is a unit of time ?

None of these
Angstrom
Barn
Light year

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Chemical Engineering Basics
A compact estimate about the amount of materials handling between various work stations is obtained from the

Bin chart
Travel chart
String diagram
Gantt chart

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