Waste Water Engineering In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? All of these 100 mm dia 225 mm dia 150 mm dia All of these 100 mm dia 225 mm dia 150 mm dia ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas which may cause explosion in sewers, is Carbon monoxide Ammonia Methane Carbondioxide Carbon monoxide Ammonia Methane Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Anaerobic bacteria Both types of bacterias None of these Aerobic bacteria Anaerobic bacteria Both types of bacterias None of these Aerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Highly resistant to sulphide corrosion Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly impervious Highly resistant to sulphide corrosion Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly impervious ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is D/1 D/4 D/2 D/3 D/1 D/4 D/2 D/3 ANSWER DOWNLOAD EXAMIANS APP
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