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

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

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Chemical Engineering Basics
Compression ratio of an I.C. engine is the ratio of the

Volume of air in cylinder before compression to that after compression
None of these
Clearance volume to the volume swept by piston per stroke
Pressure after compression to that before compression

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