1|Page
TEXAS WASTEWATER CLASS B EXAM LATEST 2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
If the ____ loading on the plant is high, the operator would need
to ____Dissolved Oxygen (DO) levels. - ANSWER-
Organic/Increase
A simple method for indicating when to waste sludge is -
ANSWER-30 minute settling test
Organic loading of a stabilization pond is about ____ pounds of
BOD/acre/day with a detention time of at least ___ days. -
ANSWER-35 BOD/ 30 Days
Anaerobic digesters are covered to keep out ____, and to trap
useful methane which can be used to keep the digester warm. -
ANSWER-free oxygen
Unstable anareobic sludge contains streaks of _________ or
________. - ANSWER-gray/green
,2|Page
Aerobic digestion is an ____process whereby the aerobic bacteria
consume themselves - ANSWER-Endogenous
Approved disposal methods for digested, dewatered, sludge's are
landfill, ____ and ____. - ANSWER-Incineration & Land
Application
Landfill applied sludge must have a solids content of at least
_________percent - ANSWER-20
Calcium Hypochlorite (HTH) is a strong _______ and reacts
violently with _________. - ANSWER-Oxidizer/Oil &
Hydrocarbons
When added to water chlorine forms _____&_______acid -
ANSWER-Hydrochlorous and Hydrochloric
When ammonia is present in wastewater and reacts with
chlorine_________are formed - ANSWER-Chloramines
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Effluent dosage of chlorine in the contact chamber must produce
a total combined residual of - ANSWER-1.0 mg/L after 20 minutes
Besides disinfection, chlorine has other uses at the wastewater
treatment plant such as - ANSWER-Reduces BOD, Odor, Algae
growth, Helps with Grease
TCEQ allows the reuse of wastewater, some of these include -
ANSWER-Irrigation, aquifer recharge, cooling towers and fire
protection
All reclaimed water piping must be _______in color - ANSWER-
purple
Before entering a manhole the operator should test for
________and oxygen levels and ________the manhole before
entering. - ANSWER-all hazardous gasses and ventilate
, 4|Page
When a municipal wastewater effluent has a high nitrate level and
low ammonia level this most likely means - ANSWER-the effluent
has received a high degree of aerobic treatment
Total solids in wastewater are the sum of - ANSWER-Settleable
and volatile solids
This treatment device is commonly used to separate and remove
large solids from raw wastewater - ANSWER-A Mechanically
raked bar screen
___________would have an adverse effect on the proper settling
of solids in a clarifier. - ANSWER-A short circuiting flow pattern
This test would give the best information on how efficiently a
trickling filter was operating - ANSWER-Percent BOD Removal
This trickling filter problem could be reduced by increasing the
recirculation ratio - ANSWER-Filter files
TEXAS WASTEWATER CLASS B EXAM LATEST 2026 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
If the ____ loading on the plant is high, the operator would need
to ____Dissolved Oxygen (DO) levels. - ANSWER-
Organic/Increase
A simple method for indicating when to waste sludge is -
ANSWER-30 minute settling test
Organic loading of a stabilization pond is about ____ pounds of
BOD/acre/day with a detention time of at least ___ days. -
ANSWER-35 BOD/ 30 Days
Anaerobic digesters are covered to keep out ____, and to trap
useful methane which can be used to keep the digester warm. -
ANSWER-free oxygen
Unstable anareobic sludge contains streaks of _________ or
________. - ANSWER-gray/green
,2|Page
Aerobic digestion is an ____process whereby the aerobic bacteria
consume themselves - ANSWER-Endogenous
Approved disposal methods for digested, dewatered, sludge's are
landfill, ____ and ____. - ANSWER-Incineration & Land
Application
Landfill applied sludge must have a solids content of at least
_________percent - ANSWER-20
Calcium Hypochlorite (HTH) is a strong _______ and reacts
violently with _________. - ANSWER-Oxidizer/Oil &
Hydrocarbons
When added to water chlorine forms _____&_______acid -
ANSWER-Hydrochlorous and Hydrochloric
When ammonia is present in wastewater and reacts with
chlorine_________are formed - ANSWER-Chloramines
,3|Page
Effluent dosage of chlorine in the contact chamber must produce
a total combined residual of - ANSWER-1.0 mg/L after 20 minutes
Besides disinfection, chlorine has other uses at the wastewater
treatment plant such as - ANSWER-Reduces BOD, Odor, Algae
growth, Helps with Grease
TCEQ allows the reuse of wastewater, some of these include -
ANSWER-Irrigation, aquifer recharge, cooling towers and fire
protection
All reclaimed water piping must be _______in color - ANSWER-
purple
Before entering a manhole the operator should test for
________and oxygen levels and ________the manhole before
entering. - ANSWER-all hazardous gasses and ventilate
, 4|Page
When a municipal wastewater effluent has a high nitrate level and
low ammonia level this most likely means - ANSWER-the effluent
has received a high degree of aerobic treatment
Total solids in wastewater are the sum of - ANSWER-Settleable
and volatile solids
This treatment device is commonly used to separate and remove
large solids from raw wastewater - ANSWER-A Mechanically
raked bar screen
___________would have an adverse effect on the proper settling
of solids in a clarifier. - ANSWER-A short circuiting flow pattern
This test would give the best information on how efficiently a
trickling filter was operating - ANSWER-Percent BOD Removal
This trickling filter problem could be reduced by increasing the
recirculation ratio - ANSWER-Filter files
