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
12500 kg
22500 kg
5000 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 succeeding activity
Identify the activities which can be delayed without affecting the total float of either the preceding or succeeding activities
Establish priorities
Identify the activities which can be delayed without affecting the total float of preceding activity

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