WASTEWATER COLLECTIONS LEVEL II &
GRADE 2 FINAL EXAM PREPARATION
2026 ACCURATE QUESTIONS AND
ANSWERS
●● A foreman's monthly report should include the
A. Last time the supervisor read the report
B. Number of complaints received and investigated
C. number of monthly reports prepared
D. Number if qualifiable worker's available. Answer: B. Number of
complaints received and investigated.
●● Solids that settle out in the bottom of a wet well are called
A. scum
B. Colloidal solids
C. suspended solids
D. Settleable solids. Answer: D. Settleable solids
●● What determines the amount of hydrogen sulfide produced in a
sewer?
A. BOD concentration
B. DO concentration
,C. pH
D. SS concentration. Answer: C. pH
●● Two pumps of the same capacity operate together with a single main.
The discharge will be--- in a typical pump station.
A. the same as one pump
B. more than one pump, but not twice as much
C. twice as much as one pump
D. more than twice as much as one pump. Answer: B. more than one
pump, but not twice as much
●● Which of the following is an indicator normally used for
determination of water pollution?
A. Fungi
B. Stapylococcus
C. Algae
D. Coliforms. Answer: D. Coliforms
●● What function does a ground fault circuit interrupter (GFCI) perform
when there is an imbalance of current between the hot and neutral
conductors of a circuit?
A. bypass the ground fault
B. grounds the equipment
, C. opens the circuit
D. rebalances the current. Answer: C. Opens the circuit
●● Plastic (PVC) pipe exposed to sunlight requires?
A. a protective coating
B. Solvent weld fittings
C. Special vertical support
D. Nothing special. Answer: A. a protective coating
●● The most important factor affecting the useful life of piping is?
A. The ability of the materials used to resist internal and external
corrosion
B. the depth of the pipe
C. the flexibility of the pipe
D. the smoothness of the inside of the pipe. Answer: A. The ability of the
materials used to resist internal and external corrosion
●● Sewers located adjacent to a ground level storage reservoir are
required to be located at least 10 feet from the structure and constructed
of watermain-type materials for a distance of at least 50 feet from the
storage reservoir. What is the reason for the requirement?
A. to prevent a high ground water table adjacent to the reservoir
B. to protect the storage reservoir from contamination
GRADE 2 FINAL EXAM PREPARATION
2026 ACCURATE QUESTIONS AND
ANSWERS
●● A foreman's monthly report should include the
A. Last time the supervisor read the report
B. Number of complaints received and investigated
C. number of monthly reports prepared
D. Number if qualifiable worker's available. Answer: B. Number of
complaints received and investigated.
●● Solids that settle out in the bottom of a wet well are called
A. scum
B. Colloidal solids
C. suspended solids
D. Settleable solids. Answer: D. Settleable solids
●● What determines the amount of hydrogen sulfide produced in a
sewer?
A. BOD concentration
B. DO concentration
,C. pH
D. SS concentration. Answer: C. pH
●● Two pumps of the same capacity operate together with a single main.
The discharge will be--- in a typical pump station.
A. the same as one pump
B. more than one pump, but not twice as much
C. twice as much as one pump
D. more than twice as much as one pump. Answer: B. more than one
pump, but not twice as much
●● Which of the following is an indicator normally used for
determination of water pollution?
A. Fungi
B. Stapylococcus
C. Algae
D. Coliforms. Answer: D. Coliforms
●● What function does a ground fault circuit interrupter (GFCI) perform
when there is an imbalance of current between the hot and neutral
conductors of a circuit?
A. bypass the ground fault
B. grounds the equipment
, C. opens the circuit
D. rebalances the current. Answer: C. Opens the circuit
●● Plastic (PVC) pipe exposed to sunlight requires?
A. a protective coating
B. Solvent weld fittings
C. Special vertical support
D. Nothing special. Answer: A. a protective coating
●● The most important factor affecting the useful life of piping is?
A. The ability of the materials used to resist internal and external
corrosion
B. the depth of the pipe
C. the flexibility of the pipe
D. the smoothness of the inside of the pipe. Answer: A. The ability of the
materials used to resist internal and external corrosion
●● Sewers located adjacent to a ground level storage reservoir are
required to be located at least 10 feet from the structure and constructed
of watermain-type materials for a distance of at least 50 feet from the
storage reservoir. What is the reason for the requirement?
A. to prevent a high ground water table adjacent to the reservoir
B. to protect the storage reservoir from contamination
