Chemical Engineering Plant Economics
According to six-tenths-factor rule, if the cost of a given unit at one capacity is known, then the cost of similar unit with '' times the capacity of the first unit is approximately equal to __________ times the cost of the initial unit.

N
N0.6
N0.4
√n

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Chemical Engineering Plant Economics
Depreciation

Costs (on annual basis) are constant when the straight line method is used for its determination
All of these
Does figure in the calculation of income tax liability on cash flows from an investment
Is the unavoidable loss in the value of the plant, equipment and materials with lapse in time

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