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

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

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

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