WASTEWATER 2 ABC #1 |
ADVANCED WASTEWATER
TREATMENT CERTIFICATION
PREP QUESTIONS AND CORRECT
ANSWERS
1. Most important factor in preventing accidents at a wastewater
plant?
Attitude of employees
2. Plant influent appears black and has a foul odor each morning.
The cause is traced to a pump station at a subdivision which is
oversized for the current number of homes in the subdivision.
What corrective action can you take?
Decrease the distance between the on and off probes in the wet well
3. Which of the following best describes the term "public
relations"?
,All contacts between the staff of the utility and those outside the
staff
4. What is a cross connection?
Result of wastewater coming into contact with potable water
5. Why is it recommended that approved backflow prevention
devices be installed above grade level?
To prevent the relief port of the device from ever becoming
submerged
6. Your plant's discharge permit requires that effluent suspended
solids be test 3 day per week. You test 5 samples per week. What
should you report?
All 5 results
7. At minimum, how often should contact lists on emergency
response plans be verified?
Quarterly
8. According to the Code of Federal Regulations the term
"Significant Industrial User" includes
A non-domestic discharger that discharges over 25,000 gallons per day
of process wastewater or is subject to specific federal pretreatment
standards
9. What document is used to evaluate compliances with personal
protective equipment guidelines?
Occupational Safety and Health Standards
, 10. Which term describes the calculated amount by which the value
of a utility's physical properly declines annually at a predetermined
rate?
Depreciation
11. According to 40 CFR, a discharge to a municipal separate
storm sewer system that is composed of storm water mixed with
industrial waste is defined by EPA as a(n)?
Illicit discharge
12. The main detrimental effect infiltration/inflow has on plant
performance is to
Cut down hydraulic detention time
13. Which of the following explains how to handle a chlorine
release?
Emergency response plan
14. Which of the following is the most significant problem in using
the activated sludge process to treat seasonal cannery waste?
Nutrient imbalance
15. An outflow proportional chlorination system is working properly.
However the morning hours when the flow is increasing, the
operator is unable to obtain a chlorine residual. What is causing
the problem?
Nitrites in the effluent
ADVANCED WASTEWATER
TREATMENT CERTIFICATION
PREP QUESTIONS AND CORRECT
ANSWERS
1. Most important factor in preventing accidents at a wastewater
plant?
Attitude of employees
2. Plant influent appears black and has a foul odor each morning.
The cause is traced to a pump station at a subdivision which is
oversized for the current number of homes in the subdivision.
What corrective action can you take?
Decrease the distance between the on and off probes in the wet well
3. Which of the following best describes the term "public
relations"?
,All contacts between the staff of the utility and those outside the
staff
4. What is a cross connection?
Result of wastewater coming into contact with potable water
5. Why is it recommended that approved backflow prevention
devices be installed above grade level?
To prevent the relief port of the device from ever becoming
submerged
6. Your plant's discharge permit requires that effluent suspended
solids be test 3 day per week. You test 5 samples per week. What
should you report?
All 5 results
7. At minimum, how often should contact lists on emergency
response plans be verified?
Quarterly
8. According to the Code of Federal Regulations the term
"Significant Industrial User" includes
A non-domestic discharger that discharges over 25,000 gallons per day
of process wastewater or is subject to specific federal pretreatment
standards
9. What document is used to evaluate compliances with personal
protective equipment guidelines?
Occupational Safety and Health Standards
, 10. Which term describes the calculated amount by which the value
of a utility's physical properly declines annually at a predetermined
rate?
Depreciation
11. According to 40 CFR, a discharge to a municipal separate
storm sewer system that is composed of storm water mixed with
industrial waste is defined by EPA as a(n)?
Illicit discharge
12. The main detrimental effect infiltration/inflow has on plant
performance is to
Cut down hydraulic detention time
13. Which of the following explains how to handle a chlorine
release?
Emergency response plan
14. Which of the following is the most significant problem in using
the activated sludge process to treat seasonal cannery waste?
Nutrient imbalance
15. An outflow proportional chlorination system is working properly.
However the morning hours when the flow is increasing, the
operator is unable to obtain a chlorine residual. What is causing
the problem?
Nitrites in the effluent
