Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 20 230 1500 750 20 230 1500 750 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes Blood poisoning All of these Nervous system disorder Anaemia Blood poisoning All of these Nervous system disorder Anaemia ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of aldrin in public water supply system is about __________ μg/litre. 1097 17 0.5 357 1097 17 0.5 357 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant. Sulphur Fluorine Calcium Phosphorous Sulphur Fluorine Calcium Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 02 to 0.3 2 to 3 5 to 10 0.001 to 0.01 02 to 0.3 2 to 3 5 to 10 0.001 to 0.01 ANSWER DOWNLOAD EXAMIANS APP
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