Construction Planning and Management
Optimistic time, most likely time and pessimistic times for the activities of a network in the given figure are written above their arrows. If the contractual obligation time for the project is 75, the latest occurrence time for the event 2, is

25
35
15
20

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Construction Planning and Management
Preliminary project report for a road project must contain

The several alternatives of the project that have been considered
The soil survey, traffic survey, concept design and approximate cost
The contract documents for inviting tenders
The detailed estimated cost based on detailed design

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Construction Planning and Management
In time-cost optimization of a project, crashing is done.

On all the activities lying on the critical path
On all the activities
Only on activities lying on the original critical path and having flatter cost slopes
On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope

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