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Chemical Engineering Basics

Chemical Engineering Basics
__________ forces do not act in case of fluids.

Centrifugal
Vibratory
Tensile
Elastic

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Chemical Engineering Basics
Shaft/rotor speed is most accurately measured by a

Frequency counter
Strobometer
Speedometer
Tachometer

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Chemical Engineering Basics
Hydrogen in liquid steels is dissolved

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

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Chemical Engineering Basics
In age-hardenable alloys, maximum ductility is obtained

Immediately after solution treatment and subsequent quenching
After optimum ageing
In as cast state
After overageing

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Chemical Engineering Basics
Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C.

1493
1147
959
597

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Chemical Engineering Basics
For hardening high alloy steel, it is to be heated slowly and uniformly to avoid

Local hardening
Segregation
Scale formation
Warpage

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