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

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Construction Planning and Management
Pick up the correct statement from the following with regards to C.P.M. network analysis of projects

The latest occurrence time of the node of which the activity arrow terminates minus the duration of the activity, is called latest start time
All listed here
The latest occurrence time for the node at which the activity arrow terminates, is called latest finish time
Earliest occurrence time of the event from which the activity arrow' originates, is called earliest start time of the activity

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

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

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