Waste Water Engineering The sewers Must be laid at least 2 to 3 m deep to collect /water from the basements All listed here Must be of adequate size to avoid over flow Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements All listed here Must be of adequate size to avoid over flow Must flow under gravity ½ to ¾ full ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 15°C 25°C 20°C 0°C 15°C 25°C 20°C 0°C ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Citric acid Hydrochloric acid Sulphuric acid Nitric acid Citric acid Hydrochloric acid Sulphuric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To maintain aerobic biological activity, the moisture content of the compost mass should be about 0.5 0.45 0.6 0.55 0.5 0.45 0.6 0.55 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering depends upon The Chezy’s constant C in the formula V = C Shape of the sewer Roughness of sewer surface Size of the sewer All listed here Shape of the sewer Roughness of sewer surface Size of the sewer All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to First stage demand Carbonaceous demand Initial demand All of these First stage demand Carbonaceous demand Initial demand All of these ANSWER DOWNLOAD EXAMIANS APP
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