Class C Wastewater Exam Questions and Answers Latest 2024-
2025 Class C Water Operator License Exam
Questions and Answers Latest Updated | TCEQ Class C Water
License Exam Questions and Answers & Texas Class C
Wastewater Treatment License Exam Questions A
Terms in this set (59)
During start up your C. Seeding the process with sufficient good quality
aeration tank sludge
produces excessive
amounts of billowing
white foam. This can
be corrected by:
A. Doing nothing, it will
go away in a few
hours
B. Increasing the sludge
wasting rate
C. Seeding the
process with
sufficient good
quality sludge
D. Spraying water on
the foam until it is
gone
E. Taking a weeks vacation
,In solving an operational A. there is almost always a good technical
problem at a treatment solution. It may require considerable
plant: experience and time to learn whaat it is.
A. there is almost always
a good technical
solution. It may
require considerable
experience and time
to learn whaat it is.
B. Human errors have
to be corrected
since the operator
is at fault.
C. don't let the laboratory
personnel
influence you're
judgement as to what
the best solution is.
D. standard textbooks in
sanitary
engineering are the best
source of information.
E. It is best to do
nothing until the
TNRCCC sends a
violation notice.
When the return E. B and D
sludge rate is too low,
what happens?
A. the aeration tank will
not fill
B. There will be
, insufficient organisms
to treat the wast load
entering the aeration
basin
C. the activated sludge
in the aerator will
starve.
D. the sludge blanket in
the secondary
clarifier could
become too high.
E. B and D
What factors affect how E. All of the above
well the mixed
liquor suspended solids
settle in the final
clarifier?
A. flow velocity and or
turbulence
B. temperature
C. quality of the mixed
liquor solids
D. Short circuiting
E. All of the above
The Active sludge E. All the above except C.
process parameters
which n operator can
change directly are:
A. aeration rates.
B. waste rates.
C. the ratio of free
2025 Class C Water Operator License Exam
Questions and Answers Latest Updated | TCEQ Class C Water
License Exam Questions and Answers & Texas Class C
Wastewater Treatment License Exam Questions A
Terms in this set (59)
During start up your C. Seeding the process with sufficient good quality
aeration tank sludge
produces excessive
amounts of billowing
white foam. This can
be corrected by:
A. Doing nothing, it will
go away in a few
hours
B. Increasing the sludge
wasting rate
C. Seeding the
process with
sufficient good
quality sludge
D. Spraying water on
the foam until it is
gone
E. Taking a weeks vacation
,In solving an operational A. there is almost always a good technical
problem at a treatment solution. It may require considerable
plant: experience and time to learn whaat it is.
A. there is almost always
a good technical
solution. It may
require considerable
experience and time
to learn whaat it is.
B. Human errors have
to be corrected
since the operator
is at fault.
C. don't let the laboratory
personnel
influence you're
judgement as to what
the best solution is.
D. standard textbooks in
sanitary
engineering are the best
source of information.
E. It is best to do
nothing until the
TNRCCC sends a
violation notice.
When the return E. B and D
sludge rate is too low,
what happens?
A. the aeration tank will
not fill
B. There will be
, insufficient organisms
to treat the wast load
entering the aeration
basin
C. the activated sludge
in the aerator will
starve.
D. the sludge blanket in
the secondary
clarifier could
become too high.
E. B and D
What factors affect how E. All of the above
well the mixed
liquor suspended solids
settle in the final
clarifier?
A. flow velocity and or
turbulence
B. temperature
C. quality of the mixed
liquor solids
D. Short circuiting
E. All of the above
The Active sludge E. All the above except C.
process parameters
which n operator can
change directly are:
A. aeration rates.
B. waste rates.
C. the ratio of free
