ALABAMA WASTEWATER EXAM 2026-2027
QUESTIONS AND ANSWERS GRADED A+
In preliminary treatment, pieces of metal, rocks, and similar items will cause pipes
to plug, may damage or plug pumps, or jam sludge collector mechanisms in a _.
clarifier
typical preliminary treatment processes include _,_,_,_,and_.
screening, shredding, grit removal, flow measurement, emergency storage.
Flows to treatment units or processes must be inspected to insure that they are
operating with their _, and to determine their _ and _.
design specifications, efficiency, loadings
How is grit removed?
By reducing the velocity of wastewater
Which dangerous gases can be produced when there is no dissolved oxygen
present in the preliminary treatment area?
Methane and Hydrogen Sulfide
,What is the determination of the quantity of a mass in movement within a known
length of time?
The flow measurement
A propeller-type velocity meter is turned by water flowing past propeller vanes
that move _.
gear trains
what do recording meter indicate?
How the value of a variable changes with time
How can you check on the daily flow in mgd?
By reading the flow totalizer
During electrical maintenance, who can change the electrical service?
Anyone qualified and authorized to do so.
where is the height of water flowing through a weir or flume measured by floats?
Stilling wells
, With internal parts maintenance conversion and readout instruments, do not
_________________ mechanical components because it causes other difficulties
equally as troublesome as __________________.
overlubricate, underlubrication
you can check the calibration of a totalizing meter by comparing the _ shown by
the meter with the flow into a _ with a _.
total flow, vessel, known volume
What are bar screens used for?
To screen the influent flow on a continuous basis
In addition to the size of the treatment plant, the amount of debris in the
wastewater, and the quantity of wastewater, what else does the routine operation of
screens and racks depend on?
The head loss across the units
When can a higher than average amount of grit be expected at a plant?
During high-flow events caused by high groundwater or storms
QUESTIONS AND ANSWERS GRADED A+
In preliminary treatment, pieces of metal, rocks, and similar items will cause pipes
to plug, may damage or plug pumps, or jam sludge collector mechanisms in a _.
clarifier
typical preliminary treatment processes include _,_,_,_,and_.
screening, shredding, grit removal, flow measurement, emergency storage.
Flows to treatment units or processes must be inspected to insure that they are
operating with their _, and to determine their _ and _.
design specifications, efficiency, loadings
How is grit removed?
By reducing the velocity of wastewater
Which dangerous gases can be produced when there is no dissolved oxygen
present in the preliminary treatment area?
Methane and Hydrogen Sulfide
,What is the determination of the quantity of a mass in movement within a known
length of time?
The flow measurement
A propeller-type velocity meter is turned by water flowing past propeller vanes
that move _.
gear trains
what do recording meter indicate?
How the value of a variable changes with time
How can you check on the daily flow in mgd?
By reading the flow totalizer
During electrical maintenance, who can change the electrical service?
Anyone qualified and authorized to do so.
where is the height of water flowing through a weir or flume measured by floats?
Stilling wells
, With internal parts maintenance conversion and readout instruments, do not
_________________ mechanical components because it causes other difficulties
equally as troublesome as __________________.
overlubricate, underlubrication
you can check the calibration of a totalizing meter by comparing the _ shown by
the meter with the flow into a _ with a _.
total flow, vessel, known volume
What are bar screens used for?
To screen the influent flow on a continuous basis
In addition to the size of the treatment plant, the amount of debris in the
wastewater, and the quantity of wastewater, what else does the routine operation of
screens and racks depend on?
The head loss across the units
When can a higher than average amount of grit be expected at a plant?
During high-flow events caused by high groundwater or storms
