Waste Water Engineering The sewage treatment units in which anaerobic decomposition of organic matter is used, are called Imhoff tanks Trickling filters None of these Sludge sedimentation tanks Imhoff tanks Trickling filters None of these Sludge sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For efficient working of a sewer, it must be ensured that Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Highly decomposed A source of objectionable odour Alkaline Acidic Highly decomposed A source of objectionable odour Alkaline Acidic ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by Bazin William-Hazen Crimp and Bruges Kutter Bazin William-Hazen Crimp and Bruges Kutter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in Chezy’s formula Manning’s formula Kutter’s formula Bazin’s formula Chezy’s formula Manning’s formula Kutter’s formula Bazin’s formula ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering At the junction of sewers Tops of both the sewers are at the same level Top of larger sewer is kept lower Top of smaller sewer is kept lower None of these Tops of both the sewers are at the same level Top of larger sewer is kept lower Top of smaller sewer is kept lower None of these ANSWER DOWNLOAD EXAMIANS APP
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