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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Construction Planning and Management
Output of a bulldozer is (i) Increased if drawbar HP of the tractor is increased for a given hauling distance (ii) Decreased if drawbar HP of the tractor is increased for a given hauling distance (iii) Increased if the hauling distance is increased for a given drawbar HP of the tractor (iv) Decreased if the hauling distance is increased for a given drawbar HP of the tractor

(ii) and (iii) are correct
(ii) and (iv) are correct
(i) and (iii) are correct
(i) and (iv) are correct

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