Waste Water Engineering Hydraulic mean radius is Difference in heads between two points in circular pipes Cross-sectional area/wetted perimeter Mean radius of sewer Mean of radii in a pipe line of varying cross -sections Difference in heads between two points in circular pipes Cross-sectional area/wetted perimeter Mean radius of sewer Mean of radii in a pipe line of varying cross -sections ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Self-cleansing velocity is Velocity at dry weather flow Velocity at which no accumulation remains in the drains Velocity of water at flushing Velocity of water in a pressure filter Velocity at dry weather flow Velocity at which no accumulation remains in the drains Velocity of water at flushing Velocity of water in a pressure filter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Pneumatic ejector Centrifugal pump Air pressure pump Reciprocating pump Pneumatic ejector Centrifugal pump Air pressure pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.05 0.1 0.5 0.25 0.05 0.1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ‘Cowl’ is provided at First step in manhole Upper end of the manhole Lower end of ventilating column Upper end of ventilating column First step in manhole Upper end of the manhole Lower end of ventilating column Upper end of ventilating column ANSWER DOWNLOAD EXAMIANS APP
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