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

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

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Construction Planning and Management
At a work site, statistical quality control of concrete means

Applying the theory' of probability to sample testing or inspection
Reduction in costs for the removal of defects
Reduction in wastage of inspection costs
Measurement of risks to eliminate failures

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