TCEQ TX Class C Wastewater Treatment License Exam |
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How many times should a clarifier concentrate mixed liquor
solids? - ANSWER-
at least two
times
Purpose of wasting solids from an activated sludge system is...
– ANSWER-remove excess biological solids, inert solids and
old/dead microorganisms
The TCEQ monthly effluent report must be submitted to the
TCEQ in Austin by the ______ day of the month following the
month being reported – ANSWER-20th
What substances should NOT be dumped into the
collection system? -
,ANSWER-acids; caustics; chemical
fertilizers
All anaerobic digester roofs/covers should be equipped with
pressure relief,
vacuum relief and _________. - ANSWER-flame-
trap valves
Hazardous gases can be composed of... - ANSWER-
combustibles and
explosive gases; asphyxiation-producing gases;
poisonous or toxic gases
In small concentrations hydrogen sulfide has a __________
odor. - ANSWER-
rotten-
egg
Methane is a ____________________ and highly flammable gas
which acts to deprive body tissues of oxygen and will not
support life. - ANSWER-colorless, odorless, tasteless
Chlorine is a heavy, non-combustible, ______________ gas with
a pungent, irritating odor and very low electrical conductivity. -
ANSWER-greenish-yellow
Who reviews plans and specifications for new construction
projects before
,construction begins? -
ANSWER-TCEQ
Water quality fees may be as high as ____________ per
permit? - ANSWER-
$115,000
Administrative penalties, up to __________ per day for each
violation, may be
assessed against any violator. -
ANSWER-$25,000
Every city with more than ________ in population needs to
establish a water
pollution control program and hire qualified personnel to
administer it. -
ANSWER-
10,000
State law requires that reports are to be submitted no later than
the ________th
day of the following month. -
ANSWER-20
What are major surface waters classified as for the purposes
of water quality
management and designation of site-specific standards? -
ANSWER-segments
, Control parameters for activated sludge plants - ANSWER-
oxygen levels,
wasting rates, sludge quality, return rates and aerator
solids levels
The air requirements in an activated sludge process are
governed by... -
ANSWER-organic loading on
the plant
The biological growth on the disc of a rotating biological
contactor should... - ANSWER-contain approximately 50,000
mg/L solids; be 0.05-0.1 inch thick after one or two weeks; and
be gray to brown in color
The RBC (rotating biological contactor) unit must be
preceded by a... -
ANSWER-primary clarifier or
fine screen
A condition(s) that adversely affect(s) the operation of a
rotating biological
contactor is... - ANSWER-toxic materials from industrial
wastes; hydrogen
sulfide; high or
low pH
A buildup of solids in the tank of the rotating biological
contactor may be caused
Most Recent Exam 2026 | Actual Comprehensive Real
Exam Questions With 100% Correct Answers | Verified
Answers | Already Graded A+ | Guaranteed Success!!
| Newest Exam | Just Released!!
How many times should a clarifier concentrate mixed liquor
solids? - ANSWER-
at least two
times
Purpose of wasting solids from an activated sludge system is...
– ANSWER-remove excess biological solids, inert solids and
old/dead microorganisms
The TCEQ monthly effluent report must be submitted to the
TCEQ in Austin by the ______ day of the month following the
month being reported – ANSWER-20th
What substances should NOT be dumped into the
collection system? -
,ANSWER-acids; caustics; chemical
fertilizers
All anaerobic digester roofs/covers should be equipped with
pressure relief,
vacuum relief and _________. - ANSWER-flame-
trap valves
Hazardous gases can be composed of... - ANSWER-
combustibles and
explosive gases; asphyxiation-producing gases;
poisonous or toxic gases
In small concentrations hydrogen sulfide has a __________
odor. - ANSWER-
rotten-
egg
Methane is a ____________________ and highly flammable gas
which acts to deprive body tissues of oxygen and will not
support life. - ANSWER-colorless, odorless, tasteless
Chlorine is a heavy, non-combustible, ______________ gas with
a pungent, irritating odor and very low electrical conductivity. -
ANSWER-greenish-yellow
Who reviews plans and specifications for new construction
projects before
,construction begins? -
ANSWER-TCEQ
Water quality fees may be as high as ____________ per
permit? - ANSWER-
$115,000
Administrative penalties, up to __________ per day for each
violation, may be
assessed against any violator. -
ANSWER-$25,000
Every city with more than ________ in population needs to
establish a water
pollution control program and hire qualified personnel to
administer it. -
ANSWER-
10,000
State law requires that reports are to be submitted no later than
the ________th
day of the following month. -
ANSWER-20
What are major surface waters classified as for the purposes
of water quality
management and designation of site-specific standards? -
ANSWER-segments
, Control parameters for activated sludge plants - ANSWER-
oxygen levels,
wasting rates, sludge quality, return rates and aerator
solids levels
The air requirements in an activated sludge process are
governed by... -
ANSWER-organic loading on
the plant
The biological growth on the disc of a rotating biological
contactor should... - ANSWER-contain approximately 50,000
mg/L solids; be 0.05-0.1 inch thick after one or two weeks; and
be gray to brown in color
The RBC (rotating biological contactor) unit must be
preceded by a... -
ANSWER-primary clarifier or
fine screen
A condition(s) that adversely affect(s) the operation of a
rotating biological
contactor is... - ANSWER-toxic materials from industrial
wastes; hydrogen
sulfide; high or
low pH
A buildup of solids in the tank of the rotating biological
contactor may be caused
