3.1 If the rate of wastewater generation is 150 gpcd, for a home with 4 persons, what is the minimum size of septic tank needed to treat its wastewater? a) 325 ft³ b) 625 ft³ c) 152 ft³ d) 161 ft³ 3.2 If the measured air pollution with CO is 90 mg/m³, what is the concentration in ppm in standard temperature 25 °C. a) 79 ppm b) 89 ppm d) 251 ppm c) 141 ppm

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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3.1 If the rate of wastewater generation is 150 gpcd, for a home with 4 persons, what is the minimum size
of septic tank needed to treat its wastewater? a) 325 ft³
b) 625 ft³ c) 152 ft³
d) 161 ft³
3.2 If the measured air pollution with CO is 90 mg/m³, what is the concentration in ppm in standard
temperature 25 °C.
a) 79 ppm b) 89 ppm
d) 251 ppm
c) 141 ppm
Transcribed Image Text:3.1 If the rate of wastewater generation is 150 gpcd, for a home with 4 persons, what is the minimum size of septic tank needed to treat its wastewater? a) 325 ft³ b) 625 ft³ c) 152 ft³ d) 161 ft³ 3.2 If the measured air pollution with CO is 90 mg/m³, what is the concentration in ppm in standard temperature 25 °C. a) 79 ppm b) 89 ppm d) 251 ppm c) 141 ppm
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