Construction Planning and Management
Rolling resistance of a wheel depends upon
(i) Vehicle load
(ii) Grade
(iii) Ground conditions

Only (i) is correct
(i) and (ii) are correct
(i) and (iii) are correct
(ii) and (iii) are correct

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

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

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