Engineering Economics
Keeping in view, the feasibility order of magnitude, the preliminary, conceptual or budget estimates, are prepared by:

Construction manager
Construction manager
Owner himself/herself
Architect/engineer

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Engineering Economics
In a cash-flow diagram:

Time 0 is considered to be the present
All of these
A vertical arrow pointing up indicates a positive cash flow
Time 1 is considered to be the end of time period 1

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