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Explain Hardness - Water Softening
1) Hardness is used to characterize a water that does not lather well, causes a scum in the bath tub and leaves hard, white, crusty deposits when water is heated
2) Calcium or magnesium forms soap- Ca or Mg complex and prevents soap from interacting with dirt
3) Hardness- caused mainly by Calcium and Magnesium(actually all polyvalent ions)
4) Common units are meq/l or mg/l as CaCO3
Estimation of Discharge: The estimation of discharge of a stream is necessary for determining the waterway, clearance and foundation details. Discharge is estimated from :
The footprint of a proposed office building is overlaid on the existing contours topographic map of a sloping site as shown in the figure. The structural bays which are 65-ft by 65
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Define Hardness - Chemical Characteristics of Water Caused by any polyvalent cations (mainly Calcium and Magnesium). Expressed as mg/l as CaCO 3 . Causes precipitates with soap
Storm water flows at a depth of 4 ft in the natural channel as shown in the figure. The channel has a slope of 0.0l ft/ft and n = 0.025. 1. Determine the flow area:
planking and strutting for shallow excavation
i have seen the example of the above topic on your page and i would like to have a solution for it
explanation for damping ration
what are the manufacturing techniques of ferro cement?
Question Have air test or water tests be selected to test leakage of constructed gravity pipelines ? Answer For gravity pipes, air tests are carried out after completi
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