Waste Water Engineering A manhole is classified as shallow if its depth is between 0.9 to 1.20 m 0.5 to 0.7 m 0.4 to 0.5 m 0.7 to 0.9 m 0.9 to 1.20 m 0.5 to 0.7 m 0.4 to 0.5 m 0.7 to 0.9 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following tests is used for testing sewer pipes? Water test Mirror test All of these Ball test Water test Mirror test All of these Ball test ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 0.5 metre/sec 0.25 metre/sec 2 metres/sec 1 metre/sec 0.5 metre/sec 0.25 metre/sec 2 metres/sec 1 metre/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to First stage demand Initial demand All of these Carbonaceous demand First stage demand Initial demand All of these Carbonaceous demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In the activated sludge process Water is removed by centrifugal action Sludge is activated by constant stirring Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge Water is removed by centrifugal action Sludge is activated by constant stirring Aeration is continued till stability Aeration is done with an admixture of previously aerated sludge ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering House connections to the laterals is generally made by Cast iron P.C.C. Glazed stonewares R.C.C. Cast iron P.C.C. Glazed stonewares R.C.C. ANSWER DOWNLOAD EXAMIANS APP