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Chemical Engineering Basics

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

Solution
Suspension
Gel
Emulsion

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Chemical Engineering Basics
Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

Insulator
Semi-conductor
None of these
Conductor

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Chemical Engineering Basics
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

Convection
Radiation
Nucleate boiling
Conduction

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

1493
959
597
1147

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Chemical Engineering Basics
On increasing the yield strength of a steel from 450 to 650 MPa, its __________ will increase.

Modulus of resilience
Percent elongation
Modulus of toughness
Ultimate tensile strength (UTS)

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Chemical Engineering Basics
Sub zero treatment of steel is done to

Suppress martensite transformation
Induce temper brittleness after its hardening
Reduce the retained austenite in hardened steel
Enhance its working performance in sub zero atmosphere

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