Construction Planning and Management
Economic saving of time results by crashing

Cheapest critical activity
Cheapest noncritical activity
Costliest critical activity
Costliest noncritical activity

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Construction Planning and Management
Batching refers to

Weighing accurately, the quantity of each material for a job before mixing
Controlling the total quantity at each batch
Adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch
Controlling the quantity of each material into each batch

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Construction Planning and Management
If the optimistic time, most likely time and pessimistic time for activity A are 4, 6 and 8 respectively and for activity B are 5, 5.5 and 9 respectively, then

expected time of both activities A and B are same
expected time of activity B is greater than the expected time of activity A
None of these
expected time of activity A is greater than the expected time of activity B

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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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