Environmental Engineering in CE The main type of sludge gas evolved during sewage treatment in Imhoff tank is H₂ CO₂ CO CH₄ H₂ CO₂ CO CH₄ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Oxidation ponds Clarifier Sludge digester Sedimentation tanks Oxidation ponds Clarifier Sludge digester Sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Alkalis Chlorine Alkyl benzene sulphonate (ABS) Benzene hexachloride Alkalis Chlorine Alkyl benzene sulphonate (ABS) Benzene hexachloride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes Paralysis of muscles & loss of appetite Gastritis & diarrhea All of these Nervous depression Paralysis of muscles & loss of appetite Gastritis & diarrhea All of these Nervous depression ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Chlorine Suspended solids Phenol and cynide Alkalis Chlorine Suspended solids Phenol and cynide Alkalis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 2 1050 42 332 2 1050 42 332 ANSWER DOWNLOAD EXAMIANS APP
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