Environmental Engineering The effective size of sand particles used in slow sand filters is 0.25 to 0.35 mm 0.60 to 1.00 mm 0.35 to 0.60 mm 1.00 to 1.80 mm 0.25 to 0.35 mm 0.60 to 1.00 mm 0.35 to 0.60 mm 1.00 to 1.80 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Partially combined system Separate system Combined system Partially separate system Partially combined system Separate system Combined system Partially separate system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In chlorination, with the rise in temperature of water, death rate of bacteria Decreases Increases None of these Remains unaffected Decreases Increases None of these Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Generally the detention period for grit chambers is kept as 1 minute 5 minutes 24 hours 12 hours 1 minute 5 minutes 24 hours 12 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of Alteration of pressure filters is Greater than that of rapid sand filters Less than that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Equal to that of slow sand filters Greater than that of rapid sand filters Less than that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Equal to that of slow sand filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Oxidation None of these Nitrification Chlorination Oxidation None of these Nitrification Chlorination ANSWER DOWNLOAD EXAMIANS APP
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