Waste Water Engineering The sewage treatment in septic tanks is due to Aerobic decomposition Anaerobic decomposition Parasitic decomposition None of these Aerobic decomposition Anaerobic decomposition Parasitic decomposition None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The coagulant which is generally not used for treating the sewage, is Ferric sulphate Ferric chloride Alum Chlorinated coppers Ferric sulphate Ferric chloride Alum Chlorinated coppers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 16 to 24 hours 24 to 36 hours 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours 4 to 8 hours 8 to 16 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 313.5 cm/sec 500 cm/sec 213.5 cm/sec 413.5 cm/sec 313.5 cm/sec 500 cm/sec 213.5 cm/sec 413.5 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gradient of sewers depends upon All listed here Velocity of flow Diameter of the sewer Discharge All listed here Velocity of flow Diameter of the sewer Discharge ANSWER DOWNLOAD EXAMIANS APP
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