C1--Provide solutions using Colebrook White Chart 7. Calculate friction losses. Show the workings on the chart. For 1. Q = 27.8 l/s D = 175mm 2. Q = 55.6 l/s D = 200mm 3. Q= 83.4 l/s D = 300mm L = 1100 L = 900 m L = 500m

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Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.