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
22500 kg
12500 kg
5000 kg

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Construction Planning and Management
At a work site, statistical quality control of concrete means

Applying the theory' of probability to sample testing or inspection
Measurement of risks to eliminate failures
Reduction in wastage of inspection costs
Reduction in costs for the removal of defects

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