REHS Exam: Wastewater questions well answered to pass graded A+

REHS Exam: Wastewater questions well
answered to pass graded A+




REHS Exam: Wastewater questions well
answered to pass graded A+




PC
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,REHS Exam: Wastewater questions well
answered to pass graded A+


How much of the population is on individual sewage disposal systems? - correct
answer ✔✔1/3 of population


What is the time limit for wastewater traveling to the waste water facility? Why? -
correct answer ✔✔2 days


Fresh wastewater is easily treated and highly putrid


Septic wastewater requires more treatment, cost, and energy


How fast does wastewater move through sewer pipes? - correct answer ✔✔2 feet
per second


Any slower and water tends to decay faster and become septic


How far are manholes placed apart? Why? - correct answer ✔✔300 - 500 feet
away, to check and monitor sewage leaks


How much water does an average American use per day? - correct answer ✔✔50
- 100 gallons per day

, What time is sewage at its heaviest flow through the wastewater treatment plant?
- correct answer ✔✔3 - 9 PM


What are the 5 types of wastewater sources? - correct answer ✔✔1) Domestic
Waste
2) Industrial Waste
3) Ground Water
4) Storm Drain Runoff
5) Municipal Waste


Domestic Water - correct answer ✔✔Sanitary waste out of a home, general
businesses, and institution


Sewage from toilets, water from showers/baths, sink/kitchen


Industrial Waste - correct answer ✔✔Waste discharged from a manufacturing
plant


Cooling water, canning, meat processors, hospitals, restaurants, refineries, plating
process, and others that require treatment before dumping into common sewer
system


Ground Water - correct answer ✔✔Can infiltrate the sewer system by the cracks
in the sewer pipe