Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 30 litres/person/month 25 litres/person/year 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year 30 litres/person/year 25 litres/person/month ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.55 2.25 2.65 2.5 2.55 2.25 2.65 2.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a continuous flow type of sedimentation tanks Maximum horizontal flow velocity is limited to 0.3 m/minute All listed here Length of the tank is normally kept 4 to 5 times the width Width of the tank is normally kept about 6 m Maximum horizontal flow velocity is limited to 0.3 m/minute All listed here Length of the tank is normally kept 4 to 5 times the width Width of the tank is normally kept about 6 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A rainfall may be classified as acidic if its pH value is less or equal to 5 7 6 6.5 5 7 6 6.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must be of adequate size to avoid over flow All listed here Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements Must be of adequate size to avoid over flow All listed here Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is Less than 6 More than 6 More than 7 Less than 7 Less than 6 More than 6 More than 7 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
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