REHS Wastewater question n answers graded A+

REHS WastewaterSludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? a. a failure in the absorption field b. a septic tank in need of cleaning c. a water line leak d. the need to replace the septic tank - correct answer a septic tank in need of cleaning Which of the following soils would be most suitable for subsurface absorption of wastewater? a. mottled brown and red soil b. blue soil c. grayish soil d. a yellow, brown, or red soil - correct answer a yellow, brown, or red soil Trickling filters can remove 90 to 95 percent of the ____________ found in soil, water, and wastewater. - correct answer - bacteria - viruses - cholera vibrio A storm sewer is used to: a. remove rain and other standing surface water b. remove sewage and storm water c. remove household water waste and gutter drain water d. remove non-toxic, non-hazardous wastewater - correct answer remove rain other than standing surface water