Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Taste & odour control Disinfection Weed control in reservoirs Removal of permanent hardness Taste & odour control Disinfection Weed control in reservoirs Removal of permanent hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 9 to 10 15 to 20 1 to 2 4 to 5 9 to 10 15 to 20 1 to 2 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Photochemical smog is formed from automobile exhaust Is harmful for crops and trees also besides causing eye irritation & asthma Appears only on sunny days By reaction of hydrocarbon & nitric oxide in presence of sunlight All of these Is harmful for crops and trees also besides causing eye irritation & asthma Appears only on sunny days By reaction of hydrocarbon & nitric oxide in presence of sunlight All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Active carbon Limestone powder or alkalised alumina Bog iron Silica gel Active carbon Limestone powder or alkalised alumina Bog iron Silica gel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is the minimum (about 0.02 ppm). Ozone Phosgene MIC (methyl iso-cynate) Bromine Ozone Phosgene MIC (methyl iso-cynate) Bromine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur. 50 1000 500 3000 (i.e. 0.3%) 50 1000 500 3000 (i.e. 0.3%) ANSWER DOWNLOAD EXAMIANS APP
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