Environmental Engineering in CE Which of the following is the most lethal water pollutant? Suspended solids Phenol and cynide Chlorine Alkalis Suspended solids Phenol and cynide Chlorine Alkalis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The disinfection efficiency of chlorine increases by(i) Decreasing the time of contact(ii) Decreasing the temperature of water(iii) Increasing the temperature of water Only (iii) Both (i) and (ii) Both (i) and (iii) Only (i) Only (iii) Both (i) and (ii) Both (i) and (iii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 0.01 0.1 4 1 0.01 0.1 4 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Hydrogen Carbon monoxide Petrol vapor Acetylene Hydrogen Carbon monoxide Petrol vapor Acetylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Tooth decay Mathenoglobenemia Asphyxiation Gastroentetitis Tooth decay Mathenoglobenemia Asphyxiation Gastroentetitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of excess flourine in water causes Respiratory disease Dental cavity Fluorosis Tooth decay Respiratory disease Dental cavity Fluorosis Tooth decay ANSWER DOWNLOAD EXAMIANS APP
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