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.

Direct production cost
General expenses
Overhead cost
Fixed expenses

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Chemical Engineering Plant Economics
Pick out the correct statement.

Sum-of-the-years-digits methods of depreciation calculation accounts for the interest on the investment
Unamortised cost is the difference between the original cost of a property and all the depreciation charges made to dat
Difference between income and expense is termed as gross revenue
Scrap value is the net amount of money obtainable from the sale of used property over and above any charges involved in its removal & sale

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