Texas Wastewater Class B 2026 Practice
Questions TCEQ VERIFIED 200 Questions
Correctly Solved (Guaranteed Pass)
The Texas Water Code establishes the protection of water quality and quantity of the state
by
setting stream standards, issues permits for discharges, identifies non-point source controls, and
establishes water reuse.
The wastewater plant operator is primarily responsible for
treating wastewater discharged into the community
Chapter ___ of the Texas Water Code is the state law controlling water pollution and ___
authority to control discharges in Texas
Chapter 26 and Texas Commission of Environmental Quality
The Texas Commission on Environmental Quality can revoke an operator's license if the
operator
causes permit violation, falsifies records or neglects their duty
If accidental discharge, bypass, or spill (SSO) of wastewater occurs the responsible party
MUST notify TCEQ regional offices within ____ hours
24
Aerobic Bacteria require_____ in the water for their metabolism
oxygen
,Anaerobic Bacteria _____ live with O2 present in the water for their metabolism
cannot
Facultative Bacteria require__________in the water for their metabolism
either aerobic or anaerobic conditions
Chemical characteristics of sewage include
solids, greases, dissolved oxygen, O2 Demand, pH, and gasses
_________removes Total Suspended Solids (TSS)
filtration
Inorganic solids include
sand, grit and minerals
Ways to reduce bad odors coming from a collection system
routinely cleaning slow running or low flow lines, adding chlorine or hydrogen peroxide to the
collection system
Types of pipe that are commonly used in wastewater collection system
ductile iron, Poly Vinyl Chloride (PVC)
Before entering a confined space a worker should
Use approved monitoring device and check for the presence of dangerous gasses, ventilate the
space with a blower, wear a safety harness and attach a life line
A properly designed and operated primary sedimentation tank should remove _____ percent
of incoming BOD
30-40%
Devices that may be used to determine the level of sewage in a lift station
air bubbler, floats, electrodes, Acoustic (sonic)
What is the most important role of aerobic bacteria in the treatment of wastewater?
decompose organic matter
The hydraulic loading of a trickling filter may be determined by
, flow rate and filter area
These can be used to dewater sludge
belt press, drying beds, solid bowl centrifuge, gravity thickener
Most important to providing adequate sewage treatment in a stabilization pond
sunlight, algae, bacteria and time
Offensive and objectionable odors which sometimes occur in trickling filters usually indicate
septic conditions are present
Dissolved Oxygen (DO) in aeration tank of an activated sludge plant should be maintained at
or about
2 to 4 mg/L
Contributes to the infiltration in a collection system
breaks in the main lines, high ground water levels, heavy rains, hydro jet cleaning plugged mains
When a centrifuge pump loses prime the
pump is no longer moving liquid
A Rotating Biological Contactor (RBC) is
fixed firm biological treatment process
Needs to be checked regularly to properly operate an activated sludge treatment plant
aeration equipment and mixed liquor solids
Point source discharges are
discharges that come from pipes or ditches that are monitored, controlled and inspected
Non-point discharges are
discharges that have intermittent, dispersed flows having little or no control
Organic solids include
organic materials from plants, animals or humans
A good plant influent pH is about
Questions TCEQ VERIFIED 200 Questions
Correctly Solved (Guaranteed Pass)
The Texas Water Code establishes the protection of water quality and quantity of the state
by
setting stream standards, issues permits for discharges, identifies non-point source controls, and
establishes water reuse.
The wastewater plant operator is primarily responsible for
treating wastewater discharged into the community
Chapter ___ of the Texas Water Code is the state law controlling water pollution and ___
authority to control discharges in Texas
Chapter 26 and Texas Commission of Environmental Quality
The Texas Commission on Environmental Quality can revoke an operator's license if the
operator
causes permit violation, falsifies records or neglects their duty
If accidental discharge, bypass, or spill (SSO) of wastewater occurs the responsible party
MUST notify TCEQ regional offices within ____ hours
24
Aerobic Bacteria require_____ in the water for their metabolism
oxygen
,Anaerobic Bacteria _____ live with O2 present in the water for their metabolism
cannot
Facultative Bacteria require__________in the water for their metabolism
either aerobic or anaerobic conditions
Chemical characteristics of sewage include
solids, greases, dissolved oxygen, O2 Demand, pH, and gasses
_________removes Total Suspended Solids (TSS)
filtration
Inorganic solids include
sand, grit and minerals
Ways to reduce bad odors coming from a collection system
routinely cleaning slow running or low flow lines, adding chlorine or hydrogen peroxide to the
collection system
Types of pipe that are commonly used in wastewater collection system
ductile iron, Poly Vinyl Chloride (PVC)
Before entering a confined space a worker should
Use approved monitoring device and check for the presence of dangerous gasses, ventilate the
space with a blower, wear a safety harness and attach a life line
A properly designed and operated primary sedimentation tank should remove _____ percent
of incoming BOD
30-40%
Devices that may be used to determine the level of sewage in a lift station
air bubbler, floats, electrodes, Acoustic (sonic)
What is the most important role of aerobic bacteria in the treatment of wastewater?
decompose organic matter
The hydraulic loading of a trickling filter may be determined by
, flow rate and filter area
These can be used to dewater sludge
belt press, drying beds, solid bowl centrifuge, gravity thickener
Most important to providing adequate sewage treatment in a stabilization pond
sunlight, algae, bacteria and time
Offensive and objectionable odors which sometimes occur in trickling filters usually indicate
septic conditions are present
Dissolved Oxygen (DO) in aeration tank of an activated sludge plant should be maintained at
or about
2 to 4 mg/L
Contributes to the infiltration in a collection system
breaks in the main lines, high ground water levels, heavy rains, hydro jet cleaning plugged mains
When a centrifuge pump loses prime the
pump is no longer moving liquid
A Rotating Biological Contactor (RBC) is
fixed firm biological treatment process
Needs to be checked regularly to properly operate an activated sludge treatment plant
aeration equipment and mixed liquor solids
Point source discharges are
discharges that come from pipes or ditches that are monitored, controlled and inspected
Non-point discharges are
discharges that have intermittent, dispersed flows having little or no control
Organic solids include
organic materials from plants, animals or humans
A good plant influent pH is about
