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 kg Scraper 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
Earliest finish of an activity is always

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

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Construction Planning and Management
Preliminary project report for a road project must contain

The contract documents for inviting tenders
The detailed estimated cost based on detailed design
The several alternatives of the project that have been considered
The soil survey, traffic survey, concept design and approximate cost

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