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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.
Transition Curves: If a vehicle travelling on a straight enters a horizontal curve abruptly, it will cause shock and sway. To avoid this, it is customary to provide a transit
Flash Point Test: The flash point is the temperature at which the bitumen gives off vapours which ignite in the presence of a flame. The flash point temperature gives the cri
what is whole circle barring
I. A horizontal 500 lb force acts at a point D of crankshaft AB which is held in static equilibrium by a twisting couple and by reactions at A and B. Knowing that the bearings are
Basic things used in road construction: Water Absorption : The quantity of water absorbed by aggregates. Aggregate Impact Value : The percentage by weight of crushed ma
geometic design of streetsand highways
If y1 and y2 are alternate depths of a rectangular channel show that Yc³ =2y1²y2²/(y1+y2) Also specific energy E = y1²+y1y2+y2²/(y1+y2)
Explain the Frequency of Inspection - Underwater Inspection? Underwater inspections must be done on every bridge identified for such inspection as per the Indian Railways Bridg
Classification of Timber Several bases are considered for the classification of timbers. The following are the essential basis: Mode of growth Modulus of elasticity
ropeways
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