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Chemical Engineering Basics

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

Turbidity
Suspended salt
Dissolved salt
Silica

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Chemical Engineering Basics
Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

Troostite
Bainite
Sorbite
Martensite

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Chemical Engineering Basics
There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Two
None of these
Three
One

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Chemical Engineering Basics
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

Ductility
Toughness
Resilience
Impact strength

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Chemical Engineering Basics
Powder metallurgy is used to produce

Components of large size
High precision components with complex cavities and sharp features
Porosity free components
Components of such alloys whose constituents do not form alloys readily

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Chemical Engineering Basics
Tempering of a material does not improve its

Machinability
Toughness
Internal stress level
Softness

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