Chemical Engineering Plant Economics
Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost x (index value/(index value at original cost was obtained) The most major component of this cost index is

Process instruments and control
Fabricated equipment and machinery
Pumps and compressor
Electrical equipments and material

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Chemical Engineering Plant Economics
In declining balance method of depreciation calculation, the

None of these
Value of the asset decreases linearly with time
Annual depreciation is the fixed percentage of the property value at the beginning of the particular year
Annual cost of depreciation is same every year

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