Construction Planning and Management
A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is:Drive wheels: 25000 kgScraper wheels: 10000 kgIf the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is

10000 kg
5000 kg
12500 kg
22500 kg

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Construction Planning and Management
Free float is mainly used to

Identify the activities which can be delayed without affecting the total float of either the preceding or succeeding activities
Identify the activities which can be delayed without affecting the total float of preceding activity
Establish priorities
Identify the activities, which can be delayed without affecting the total float of succeeding activity

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

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Construction Planning and Management
Earliest finish of an activity is always

Less than or equal to earliest event time of the following node
Greater than earliest event time of the following node
Greater than or equal to earliest event time of the following node
Less than earliest event time of the following node

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