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Chemical Engineering Basics

Chemical Engineering Basics
A jig is used while __________ a hole.

Boring
Enlarging
Counter boring
Drilling

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Chemical Engineering Basics
Corrosion rate can not be lowered by reducing the __________ of the corroding medium.

Concentration
Temperature
None of these
Velocity

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Chemical Engineering Basics
A suitable lubricant used for watches is

Grease
Hazel-nut oil
Palm oil
Metallic soap solution

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Chemical Engineering Basics
The most detrimental impurity in high pressure boiler feed water is

Silica
Suspended salt
Turbidity
Dissolved salt

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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
Gantt chart
Bin chart
Travel chart

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Chemical Engineering Basics
Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Retained austenite
Relatively high sulphur content in the base metal
Sufficient hydrogen present in the welding arc
Martensite formation

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