Page No. 70
Presence of ____________ in water stream are deleterious to aquatic life?
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Tolerable limit of nitrogen oxides in air is _____________ ppm?
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BOD of raw municipal sewage may be in the range of about _____________ mg/litre?
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Iron & manganese present in the polluted water is removed by __________________?
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TLV of aldrin in public water supply system is about ____________ μg/litre?
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Aerobic biological oxidation ponds used for the purification of polluted water__________________?
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Presence of excess fluorine in water causes__________________?
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The shape of T-S diagram for Carnot Cycle is a__________________?
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Trouton’s ratio of ______________ liquids is calculated using Kistyakowsky equation?
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