Waste Water Engineering If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is 1 in 60 1 in 120 1 in 100 None of these 1 in 60 1 in 120 1 in 100 None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is 0.20 cumec 0.12 cumec 0.10 cumec 0.15 cumec 0.20 cumec 0.12 cumec 0.10 cumec 0.15 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Parabolic shaped Horse shoe shaped Circular shaped Standard egg shaped Parabolic shaped Horse shoe shaped Circular shaped Standard egg shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If q is the average sewage flow from a city of population P, the maximum sewage flow Q = [(4 + )/(18 + )] q Q = [(18 + P)/(4 + )] q Q = [(18 + )/(4 + )] q Q = [(5 + )/((15 + )] q Q = [(4 + )/(18 + )] q Q = [(18 + P)/(4 + )] q Q = [(18 + )/(4 + )] q Q = [(5 + )/((15 + )] q ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Both types of bacterias Aerobic bacteria None of these Anaerobic bacteria Both types of bacterias Aerobic bacteria None of these Anaerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage having fully oxidised organic matter, the nitrogen exists in the form of Nitrites Nitrates Free ammonia Aluminoid nitrogen Nitrites Nitrates Free ammonia Aluminoid nitrogen ANSWER DOWNLOAD EXAMIANS APP
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