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

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

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Construction Planning and Management
Batching refers to

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

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