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Explain the Ion Exchange water Softening
Softening is usually done using a resin (natural or synthetic long chain chemical with a sodium ion attached). When water containing hardness ions is passed through the resin, the hardness ions (Ca, Mg) exchange with Na ions on the resin (thus the resulting water is free of hardness ions but high in sodium).
When the sodium ions on the resin are exhausted, the resin is regenerated using a brine solution (which replaces all hardness ions attached to the resin with Na ions again) and the resin can be used again.
Explain the Unconfined Aquifer Also termed "free aquifer". Groundwater flows by gravity from high head to low head. The upper water surface is termed "water table", is influenc
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If the standard deviation of an observation is ± 10-ft, the most probable error would be: The most probable error is defined as the error for which there are equal chances of t
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A 30 cm diameter pile penetrates a deposit of soft clay 9 m deep and rests on sand. Compute the skin friction resistance. The clay has unit cohesion of 0.6 kg/cm 2 . Suppose
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PART - A 1. Can you enumerate the benefits of individual wall method of estimation? 2. Estimate the single room of size 3m x 4m x height 3m using individual wall method?
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