Waste Water Engineering If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is 1 in 100 None of these 1 in 60 1 in 120 1 in 100 None of these 1 in 60 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Pick up the incorrect statement from the following for allowing workers to enter sewers Warning signals should be erected The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out The men entering the manhole should be advised to smoke in the sewer Warning signals should be erected The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out The men entering the manhole should be advised to smoke in the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Scouring occurs at bottom Both silting and scouring occur at bottom Silting occurs at bottom Neither silting nor scouring occurs at bottom Scouring occurs at bottom Both silting and scouring occur at bottom Silting occurs at bottom Neither silting nor scouring occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer which resists sulphide corrosion, is Brick sewer Cast iron sewer Lead sewer R.C. sewer Brick sewer Cast iron sewer Lead sewer R.C. sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For drainage pipes in buildings the test applied before putting them to use, is All listed here Straightness test Water test Smoke test All listed here Straightness test Water test Smoke test ANSWER DOWNLOAD EXAMIANS APP
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