Construction Planning and Management
In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?

No, because of repetitive manufacture of a number of elements
No, because of savings in site labour
Yes, because of the very high order of quality control for the factory made components
Yes, because of heavier overheads and handling cost

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

Free float of the activity must be zero but independent float need not be zero
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

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