Waste Water Engineering In olden days the type of section adopted in trunk and out fall sewers was Circular shaped Egg shaped Parabolic shaped Horse shoe shaped Circular shaped Egg shaped Parabolic shaped Horse shoe shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 200 mg/l 300 mg/l 100 mg/l 400 mg/l 200 mg/l 300 mg/l 100 mg/l 400 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Kutter Manning Chezy Bazin Kutter Manning Chezy Bazin ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering hydraulically equivalent, the relationship which holds good, is D2/3 = 4 b2/3 D3/8 = 4 b3/8 D3/2 = 4 b3/2 D8/3 = 4 b8/3 D2/3 = 4 b2/3 D3/8 = 4 b3/8 D3/2 = 4 b3/2 D8/3 = 4 b8/3 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 Test for straightness is carried out with the help of a lamp and mirror Obstruction test is carried out with the help of smooth ball of diameter 13 mm Water test is carried out to check water tightness of the joints All listed here Test for straightness is carried out with the help of a lamp and mirror Obstruction test is carried out with the help of smooth ball of diameter 13 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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