Chemical Engineering Basics
Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means

Writing off the obsolete machine/ property
Mortgaging the obsolete machine/property
Disposing off machine/property, which is no longer useful in the present scenerio
Disposing off a machine/property on as is where is basis

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Chemical Engineering Basics
Which of the following is not a characteristic observed in material failure by fatigue fracture ?

Plastic deformation of material does not occur
Initation of crack occurs on the surface of the machine part
Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Initiation of crack from below the surface does not occur

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