WASTEWATER COLLECTIONS III ACTUAL 2026 TEST PAPER
UPDATED QUESTIONS AND SOLUTIONS RATED A+
✔✔The gas most commonly associated with fresh wastewater is
A. carbon dioxide
B. carbon monoxide
C. hydrogen sulfide
D. oxygen - ✔✔D. oxygen
✔✔The electrical disconnect for a pumping station motor can trip out under which
one(s) of the following possibilities?
A. clogged pump inlet
B. low temperature
C. strike by lightning
D. worn packing - ✔✔C. strike by lightning
✔✔One of the electric motors in the facility has overheated and caught fire. Select the
correct sequence of steps you would take.
1. extinguish fire
2. test
3. repair
4. shut off power
5. remove tags and locks
6. ascertain cause
7. tag and lock out power
A. 1, 2, 6, 4, 7, 3, 5
B. 1, 4, 6, 7, 2, 3, 5
C. 4, 1, 7, 6, 3, 5, 2
D. 4, 6, 1, 7, 3, 5, 2 - ✔✔C. 4, 1, 7, 6, 3, 5, 2
✔✔Pipe materials that are the least susceptible to corrosion by acids formed from
gases generated in sewers are
A. ACP
B. CIP
C. RCP
D. VCP - ✔✔D. VCP
✔✔The level of water can be measured by
A. bubblers
B. electrical probes
C. floats
D. all of the above - ✔✔D. all of the above
✔✔At a pumping station equipped with centrifugal pumps, what caused the discharge
pressure to suddenly increase and the discharge quantity to suddenly decrease?
, A. a discharge valve was closed
B. a suction valve was closed
C. the pump amperage was decreased
D. the voltage was suddenly increased - ✔✔A. a discharge valve was closed
✔✔You have been directed to examine and review the plans and specifications for a
new wastewater pump station prior to the advertising for construction bids. Which of the
following is of least significance to your review?
A. the clearance around and above pumps, motors, valves and control switch gear
B. the provisions for ingress and egress for both wet well and dry well
C. the size and geometry of the wet well
D. the specific colors for all piping - ✔✔D. the specific colors for all piping
✔✔Which one(s) of the following items should be inspected when responding to a lift
station alarm at night?
A. dry well
B. motor control center and power panel
C. operation of ventilation equipment
D. all of the above - ✔✔D. all of the above
✔✔What is the greatest distance at which manholes should be installed for an 8-inch
sewer line?
A. 100 feet
B. 200 feet
C. 300 feet
D. 400 feet - ✔✔C. 300 feet
✔✔Disaster planning is
A. having manuals ready so they can be read if a disaster occurs
B. something that, if properly done, will not need to be revised
C. useful in reducing confusion in the event of a disaster
D. none of the above - ✔✔C. useful in reducing confusion in the event of a disaster
✔✔The best discipline is
A. authoritarian
B. general supervisory
C. self-discipline
D. theocratic - ✔✔C. self-discipline
✔✔Staffing a new system should be viewed primarily as the function of
A. every operator
B. personnel department
C. the employee
D. the supervisory management - ✔✔D. the supervisory management
UPDATED QUESTIONS AND SOLUTIONS RATED A+
✔✔The gas most commonly associated with fresh wastewater is
A. carbon dioxide
B. carbon monoxide
C. hydrogen sulfide
D. oxygen - ✔✔D. oxygen
✔✔The electrical disconnect for a pumping station motor can trip out under which
one(s) of the following possibilities?
A. clogged pump inlet
B. low temperature
C. strike by lightning
D. worn packing - ✔✔C. strike by lightning
✔✔One of the electric motors in the facility has overheated and caught fire. Select the
correct sequence of steps you would take.
1. extinguish fire
2. test
3. repair
4. shut off power
5. remove tags and locks
6. ascertain cause
7. tag and lock out power
A. 1, 2, 6, 4, 7, 3, 5
B. 1, 4, 6, 7, 2, 3, 5
C. 4, 1, 7, 6, 3, 5, 2
D. 4, 6, 1, 7, 3, 5, 2 - ✔✔C. 4, 1, 7, 6, 3, 5, 2
✔✔Pipe materials that are the least susceptible to corrosion by acids formed from
gases generated in sewers are
A. ACP
B. CIP
C. RCP
D. VCP - ✔✔D. VCP
✔✔The level of water can be measured by
A. bubblers
B. electrical probes
C. floats
D. all of the above - ✔✔D. all of the above
✔✔At a pumping station equipped with centrifugal pumps, what caused the discharge
pressure to suddenly increase and the discharge quantity to suddenly decrease?
, A. a discharge valve was closed
B. a suction valve was closed
C. the pump amperage was decreased
D. the voltage was suddenly increased - ✔✔A. a discharge valve was closed
✔✔You have been directed to examine and review the plans and specifications for a
new wastewater pump station prior to the advertising for construction bids. Which of the
following is of least significance to your review?
A. the clearance around and above pumps, motors, valves and control switch gear
B. the provisions for ingress and egress for both wet well and dry well
C. the size and geometry of the wet well
D. the specific colors for all piping - ✔✔D. the specific colors for all piping
✔✔Which one(s) of the following items should be inspected when responding to a lift
station alarm at night?
A. dry well
B. motor control center and power panel
C. operation of ventilation equipment
D. all of the above - ✔✔D. all of the above
✔✔What is the greatest distance at which manholes should be installed for an 8-inch
sewer line?
A. 100 feet
B. 200 feet
C. 300 feet
D. 400 feet - ✔✔C. 300 feet
✔✔Disaster planning is
A. having manuals ready so they can be read if a disaster occurs
B. something that, if properly done, will not need to be revised
C. useful in reducing confusion in the event of a disaster
D. none of the above - ✔✔C. useful in reducing confusion in the event of a disaster
✔✔The best discipline is
A. authoritarian
B. general supervisory
C. self-discipline
D. theocratic - ✔✔C. self-discipline
✔✔Staffing a new system should be viewed primarily as the function of
A. every operator
B. personnel department
C. the employee
D. the supervisory management - ✔✔D. the supervisory management
