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Q. Explain Dissolved Impurities in water?
The impurities which are caused by the action of water and water forming Acids with organic matter and carbon dioxide from air during its flow over mineral Salts present in the soil are called dissolved impurities.
These include following :-
(a) Salts :- (I) Calcium and magnesium salts ( Carbonates; Bicarbonates; Chlorides; Sulfates.)
(ii) Sodium salts- Carbonates; Bicarbonates; Chlorides; Sulphates; fluorides.
(b) Metals:- Iron; Lead; Manganese; Arsenic.
( c ) Gases ;- Oxgyen; chlorine; Hydrogen; Sulphide; Carbon dioxide; Ammonia.
(d) Vegetable and Animal matter.
Q. Compacted thickness of bituminous pavement? The choice of compacted thickness is closely related to the nominal maximum size of aggregates of bituminous materials. Based on
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Define Structural connection loosening - Deterioration in Steel? Structural connections joined together by rivets or bolts have a tendency to work loose over an extended period
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Absolute pressure is simply the addition of the observed gage pressure plus the value of the local atmospheric pressure.
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