Environmental Engineering in CE The pH value of potable water should be between 1 to 1.5 4 to 5 13 to 14 6.5 to 8 1 to 1.5 4 to 5 13 to 14 6.5 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. Ortho-xylene None of these Potassium cyanide Coal ash Ortho-xylene None of these Potassium cyanide Coal ash ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of a certain minimum quantity of flourine is desirable in potable water to prevent Water-borne disease Corrosion Dental cavities Scale formation Water-borne disease Corrosion Dental cavities Scale formation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. 75 120 95 140 75 120 95 140 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Hertz Roentgen Decibel None of these Hertz Roentgen Decibel None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Lime Ferrous sulphate Hydrazine Alum Lime Ferrous sulphate Hydrazine Alum ANSWER DOWNLOAD EXAMIANS APP
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