Waste Water Engineering During preliminary treatment of a sewage Floating materials are removed by screening All listed here Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks Floating materials are removed by screening All listed here Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following resists hydrogen sulphide corrosion? Glazed stone wares Glazed ware R.C.C. Asbestos cement Glazed stone wares Glazed ware R.C.C. Asbestos cement ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In case of sewer lines Water test is carried out to check water tightness of the joints All listed here Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror Water test is carried out to check water tightness of the joints All listed here Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be Less than 10 m/sec Less than the self-cleansing velocity More than 20 m/sec More than the self-cleansing velocity Less than 10 m/sec Less than the self-cleansing velocity More than 20 m/sec More than the self-cleansing velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Cleaner water Active decomposition Degradation Recovery Cleaner water Active decomposition Degradation Recovery ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 0°C 15°C 20°C 25°C 0°C 15°C 20°C 25°C ANSWER DOWNLOAD EXAMIANS APP
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