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

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

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Construction Planning and Management
During the construction period, price variation clause in contracts caters to

Increase in rates of only important materials
Variation in total cost of the project on an ad hoc basis
Variation in cost in materials element, labour element and petrol-oil-lubricant element
Rate of inflation

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Construction Planning and Management
The reduction in project time normally results in

Increasing the direct cost and decreasing the indirect cost
Decreasing the direct cost and indirect cost both
Decreasing the direct cost and increasing indirect cost
Increasing the direct cost and indirect cost both

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Construction Planning and Management
Total float for any activity is defined as the difference between

Its earliest finish time and earliest start time for its successor activity
Its latest start time and earliest finish time
Its latest finish time and earliest start time for its successor activity
Its latest start time and earliest start time

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