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Chemical Engineering Basics

Chemical Engineering Basics
The process of removal of scale formed during hot rolling of steel is termed as

Shot blasting
Skimming
Descaling
Pickling

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Chemical Engineering Basics
Milk is fat dispersed in water. It is an example of

Gel
Emulsion
Suspension
Solution

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Chemical Engineering Basics
Which of the following phenomenon/ phenomena is/are diffusion controlled ?

Recrystallisation
Dislocation climb
Twinning
Cross-slip

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Chemical Engineering Basics
Super conduction in metals is observed at a temperature of __________ °K.

About 273
>100
About 373

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Chemical Engineering Basics
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

Cobalt, chromium & nickel
Molybdenun, tungsten & chromium
Cobalt, chromium & tungsten
Cobalt, zirconium & molybdenum

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Chemical Engineering Basics
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

10
100
10000
1000

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