Construction Planning and Management
A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will

Increase by 200 kg
Reduce by 250 kg
Increase by 250 kg
Reduce by 200 kg

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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

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

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