Environmental Engineering Disinfection efficiency is Highest at pH value equal to 7 Reduced at higher pH value of water Increased at higher pH value of water Unaffected by pH value of water Highest at pH value equal to 7 Reduced at higher pH value of water Increased at higher pH value of water Unaffected by pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is 1,00,000 1000 4,00,000 4000 1,00,000 1000 4,00,000 4000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 1 43833 43864 43894 1 43833 43864 43894 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used All of these To increase the filtration rapid sand filters capacity of For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of All of these To increase the filtration rapid sand filters capacity of For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be 2X X/4 X X/2 2X X/4 X X/2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
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