Chemical Engineering Basics
Function of feed check valve in a boiler is to

Regulate the water flow to boiler
Prevent the back flow of water
Check the water level in the boiler drum
Facilitate circulation of high pressure feed water

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

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

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