| Question | Answer | % Correct |
|---|---|---|
| Which of the following are important reasons for adequate treatment of a community's waste water? | All of the above | 100%
|
| The condition of the raw waste water entering the treatment plant could be affected by which of the following? | All of the above | 100%
|
| Which of the following is an important step in waste water treatment? | All of the above | 94%
|
| Important factors that determine the type of treatment scheme that will be used include which of the following? | All of the above | 94%
|
| Hauling sludge to a landfill is a common method of ________. | sludge disposal | 94%
|
| The extent of treatment required for a waste water discharge depends on ________. | water quality standards set for the receiving stream | 94%
|
| If a waste water treatment plant does not discharge to a receiving stream, the effluent could be disposed of by which of the following? | All of the above | 88%
|
| Using the final effluent from a waste water treatment plant to irrigate pasture land would ________. | be a beneficial way to reuse waste water | 82%
|
| The protozoa that cause amoebic dysentery would most likely be destroyed by _________. | disinfection | 82%
|
| Essential parts of the waste water collection system include ________. | manholes and pipes | 76%
|
| The purpose of the microorganisms that are present in biological treatment processes is to ________. | trap and consume contaminants in wastewater | 71%
|
| A rotating biological contactor is ________. | a type of biological secondary treatment process | 65%
|
| Grit removal is usually accomplished in ________. | preliminary treatment | 65%
|
| Thickening of waste water sludges, a process that removes excess water, usually precedes _________. | stabilization | 53%
|