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Chemical Engineering Basics

Chemical Engineering Basics
Free oxygen is removed from boiler feed water, because it

Reduces heat transfer co-efficient
Is corrosive
None of these
Causes explosion

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Chemical Engineering Basics
Rain drops falling through atmospheric air attain limited terminal velocity, because of

Surface tension effects of water
Viscous force exerted by air
Upward thrust due to air
Force of gravity

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

String diagram
Travel chart
Gantt chart
Bin chart

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Chemical Engineering Basics
Chlorine acts as a bleaching agent only in the presence of

Moisture
Dry air
Sunlight
Pure oxygen

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Chemical Engineering Basics
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

Steel
Glass
Rubber
Brass

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

Rockwell F
Shore sceleroscope
Knoop
Vicker's

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