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

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

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Engineering Economics
Which is NOT an essential element of an ordinary annuity?

The amounts of all payments are equal.
The payments are made at equal interval of time.
Compound interest is paid on all amounts in the annuity.
The first payment is made at the beginning of the first period.

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