Construction Planning and Management
Whenever an activity has zero total float, then

Free float and independent float both must be zero
Free float and independent float both need not be zero
Independent float must be zero but free float need not be zero
Free float of the activity must be zero but independent float need not be zero

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

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

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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 quantity of each material into each batch
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

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