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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.
range of an inclined plane
Explain the term - Circular Prestressing This term refers to the case when tendon profile is provided in a round shape, such as in water tanks and pipes, etc.
Q. What do you understand by Percolation of water? Percolation of water into the ground or embankment takes place, causing rise in water table and / or saturation of the body.
a) Take into consideration the boiler efficiency, and verify the cost of heating the building, during the heating season, using present oil and gas prices. b) Investigate the i
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Common defects - bituminous roads: Cracks can be filled with a bitumen emulsion. Wide cracks can be filled with premix sand asphalt. If an overlay is to be laid on a cracke
List the ingredients of cement And their functions
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short note about characteristics of distomat
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