Environmental Engineering in CE The pH value of potable water should be between 1 to 1.5 13 to 14 4 to 5 6.5 to 8 1 to 1.5 13 to 14 4 to 5 6.5 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? Volcanic eruption Deforestation None of these Forest fire Volcanic eruption Deforestation None of these Forest fire ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pick out the one which is not a chemical coagulant. Aluminium sulphate Hydrated lime Chloramine Ferrous sulphate Aluminium sulphate Hydrated lime Chloramine Ferrous sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 90 120 105 60 90 120 105 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following industries discharge mercury as a pollutant? Chloro-alkali industry Phosphoric acid plant Beverage plant Tanneries Chloro-alkali industry Phosphoric acid plant Beverage plant Tanneries ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ in water stream are deleterious to aquatic life. Soluble and toxic organics Heavy metals and cynides Suspended solids All of these Soluble and toxic organics Heavy metals and cynides Suspended solids All of these ANSWER DOWNLOAD EXAMIANS APP
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