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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.
Define the types of Pump Performance Curves Two types of pump performance curves: x-axis = flow rate; y-axis = head (TDH). Characteristic curves: Provided by the pump m
Describe the various steps in embankment construction.
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Determine the meaning of Relaxation of Steel If the strain in steel is kept constant, it is seen that stresses in it reduce with time. It is called as relaxation of steel. Ten
different types of ranging
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Q. What is Ceramic mosaic and Chequered Cement tiles? Chequered Mosaic tiles - Repairs to steps of F O Bs should be done only with Chequered Mosaic tiles. Ceramic m
(a) Distinguish among Black cotton soil and Laterite from an engineering point of view. (b) Explain the terms 'Void ratio', 'Degree of saturation' and 'Water content', define th
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