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

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

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

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

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