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Chemical Engineering Basics

Chemical Engineering Basics
Cold chiesel & hammers are made of

High carbon steel
Mild steel
High speed steel
Forged steel

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Chemical Engineering Basics
Lime contains about 90% CaO. Percentage CaO present in limestone is about

25
70
80
50

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Chemical Engineering Basics
Hydrogen in liquid steels is dissolved

In the molecular form
As tiny gas bubbles
In the ionic form
In the atomic form

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Chemical Engineering Basics
Buoyancy force depends on the __________ the liquid.

Displaced mass of
Depth of immersion in
Viscosity of
Surface tension of

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

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

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

Suspension
Gel
Solution
Emulsion

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