Engineering Economics
What is defined as the investment of loan or principal which is based not only on the original amount of the loan or principal but the amount of loaned or principal plus the previous accumulated interest?

Simple interest
Compound interest
Nominal rate of interest
Effective rate of interest

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Engineering Economics
Which one of the following questions is relevant to the construction estimates?

Did the estimators precisely evaluate site conditions
How much money will the contractor's risk, loosing if he were to submit bid on the raw estimate of cost
All of these
Did the estimators use short cut methods which may be unrealistic in their situation

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