Environmental Engineering The effective size of sand particles used in slow sand filters is 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 0.60 to 1.00 mm 1.00 to 1.80 mm 0.25 to 0.35 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used To increase the filtration slow sand filters capacity of To increase the filtration rapid sand filters capacity of All of these For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of To increase the filtration rapid sand filters capacity of All of these For isolated buildings like pools, hotels etc swimming ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Detritus tanks Skimming tanks Sedimentation tanks Grit chambers Detritus tanks Skimming tanks Sedimentation tanks Grit chambers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection efficiency is Highest at pH value equal to 7 Increased at higher pH value of water Reduced at higher pH value of water Unaffected by pH value of water Highest at pH value equal to 7 Increased at higher pH value of water Reduced at higher pH value of water Unaffected by pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called Anti-siphonage pipe Waste pipe Vent pipe Soil pipe Anti-siphonage pipe Waste pipe Vent pipe Soil pipe ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground Steeper than 1 in 20 Zero Given in the direction of natural slope of ground Given in the direction opposite to natural slope of ground Steeper than 1 in 20 ANSWER DOWNLOAD EXAMIANS APP
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