Chemical Engineering Plant Economics
Expenditure on research and development (R & D) is categorised as the __________ , while making an estimate of the total product cost for a chemical plant.

Fixed expenses
Direct production cost
General expenses
Overhead cost

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Chemical Engineering Plant Economics
The depreciation during the year 'n', in diminishing balance method of depreciation calculation, is calculated by multiplying a fixed percentage 'N' to the

Depreciation during the (n - 1)th year
Difference between initial cost and salvage value
Book value at the end of (n - 1)th year
Initial cost

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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

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

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