Engineering Economics
What type of depreciation is due to the reduction in the demand for the function that the equipment or asset was designed to render?

Physical depreciation
Design depreciation
Functional depreciation
Demand depreciation

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Engineering Economics
The key to profitable operation for project cost control, is:

To keep the project cost equal to original cost estimate
To keep the project cost equal to subsequent construction budget
None of these
To keep the project cost within the cost budget and knowing when and where job costs are deviating

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