Construction Planning and Management
If the total float and duration of an activity are 5 and 10 days respectively, the particular activity can be

Performed at slower rate in 15 days
Started 5 days later
All listed here
Completed 5 days later

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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
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
On all the activities

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Construction Planning and Management
Crash project duration is obtained by summing the

Crash durations for all activities
Crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
Normal durations for all the activities
Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities

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