WASTEWATER OPERTOR- CLASS 1- EXAM
WITH QUESTIONS AND WELL-VERIFIED
ANSWERS|| GUARANTEED PASS
What is the easiest, but most important thing for maintaining a healthy lagoon? -
ANSWER-Housekeeping / Weed & Pest control
What are the two main natural ways oxygen is supplied to a lagoon? -
ANSWER-- Diffusion from the atmosphere.
- Production by algae during sunny daylight hours.
How many pounds of oxygen can one pound of algae produce on a normal
sunny summer day? - ANSWER-1.6 lbs of Oxygen from every 1 lbs of algae.
In an Imoff Tank, how is a "Slot" cleaned out? - ANSWER-"Chaining"
Typically a large logging chain is inserted and dragged back and forth, clearing
out any blockages.
At what point does an Imoff Tank need to have sludge removed? - ANSWER-
When the sludge gets within 18 inches of the slot.
What is the color and consistency of the sludge that comes out of an Imoff
Tank? - ANSWER-Black & Gritty sludge
,What is the "Head over Crest of a Weir"? - ANSWER-Refers to the vertical
distance between the water surface level upstream of a weir and the top edge of
the weir itself.
( Essentially the height of the water above the weir's crest where the water is
flowing over it. )
** "Crest" : The top edge of the weir where water flows over.
** "Head" : The vertical distance between the water surface and a reference
point (in this case, the weir crest)
What are the steps to connecting & opening a new Chlorine cylinder? -
ANSWER-1. Connect the new cylinder using a new lead washer and a
"Standard" wrench.
2. Test for leaks with Ammonia vapor.
3. Open the valve a small amount and close immediately.
4. Test for leaks again.
5. Open the valve more and close immediately again.
6. Test for leaks again.
7. If no leaks, open the valve 1 Full turn.
,What was the main purpose of the creation of "40 CFR Part 503" in 1993? -
ANSWER-Regulation for the use and disposal of biosolids from wastewater
treatment facilities.
What is the best way an operator can use security programs at treatment plants?
- ANSWER-Use their eyes and ears to be proactive about possible future issues.
How does the Superfund Amendments and Reauthorization Act ( S.A.R.A. )
affect treatment plants? - ANSWER-Covers hazardous chemicals used and store
on site.
What does the term "Volatilized" mean and how does it relate to Anaerobic
bacteria? - ANSWER-When something is converted into a gas.
Methane forming bacteria convert organic acids into gases.
What is "Duckweed" and how does it affect a lagoon's health? - ANSWER-A
small invasive plant that floats on the surface of the water, blocking sunlight
and creating surface condition issues.
What is the main purpose of a "Lift Station" in a Collection System? -
ANSWER-Used to move wastewater to a higher elevation so gravity can take
over as the main force moving the flow towards the treatment plant.
What is the difference between what type of building would use different
Voltage?
( - - - 220 - - - 440 ) - ANSWER- : Residential or Small
Commercial
220 : Large Commercial or Hospital
, 440 : Industrial
What is the percent range required for confined spaces without the need for
individual breathing system? - ANSWER-19.5% - 23.5%
What is the weight of Hydrogen Sulfide compared to normal air? - ANSWER-It
is slightly heavier than normal air
What are the 3 jobs on a confined space crew? - ANSWER-Entry Supervisor /
Entrant / Attendant
Who is allowed to enter a P.R.C.S. job site besides the Entrant? - ANSWER-No
one on the work crew.
Properly trained emergency responders may enter in case of emergency.
What is the most general definition of a "Confined Space"? - ANSWER-A
location that has limited or restricted means for entry or exit and is not designed
for continuous occupancy.
What chemical is commonly used to remove Chlorine from the effluent flow? -
ANSWER-Sulfur Dioxide
What is the difference between "Mesophilic" & "Thermophilic" bacteria? -
ANSWER-Mesophilic bacteria grow best at moderate temperatures [ 68°F
(20°C) - 113°F (45°C) ].
Most human pathogens and the organisms in the human microbiome are
mesophilic.
WITH QUESTIONS AND WELL-VERIFIED
ANSWERS|| GUARANTEED PASS
What is the easiest, but most important thing for maintaining a healthy lagoon? -
ANSWER-Housekeeping / Weed & Pest control
What are the two main natural ways oxygen is supplied to a lagoon? -
ANSWER-- Diffusion from the atmosphere.
- Production by algae during sunny daylight hours.
How many pounds of oxygen can one pound of algae produce on a normal
sunny summer day? - ANSWER-1.6 lbs of Oxygen from every 1 lbs of algae.
In an Imoff Tank, how is a "Slot" cleaned out? - ANSWER-"Chaining"
Typically a large logging chain is inserted and dragged back and forth, clearing
out any blockages.
At what point does an Imoff Tank need to have sludge removed? - ANSWER-
When the sludge gets within 18 inches of the slot.
What is the color and consistency of the sludge that comes out of an Imoff
Tank? - ANSWER-Black & Gritty sludge
,What is the "Head over Crest of a Weir"? - ANSWER-Refers to the vertical
distance between the water surface level upstream of a weir and the top edge of
the weir itself.
( Essentially the height of the water above the weir's crest where the water is
flowing over it. )
** "Crest" : The top edge of the weir where water flows over.
** "Head" : The vertical distance between the water surface and a reference
point (in this case, the weir crest)
What are the steps to connecting & opening a new Chlorine cylinder? -
ANSWER-1. Connect the new cylinder using a new lead washer and a
"Standard" wrench.
2. Test for leaks with Ammonia vapor.
3. Open the valve a small amount and close immediately.
4. Test for leaks again.
5. Open the valve more and close immediately again.
6. Test for leaks again.
7. If no leaks, open the valve 1 Full turn.
,What was the main purpose of the creation of "40 CFR Part 503" in 1993? -
ANSWER-Regulation for the use and disposal of biosolids from wastewater
treatment facilities.
What is the best way an operator can use security programs at treatment plants?
- ANSWER-Use their eyes and ears to be proactive about possible future issues.
How does the Superfund Amendments and Reauthorization Act ( S.A.R.A. )
affect treatment plants? - ANSWER-Covers hazardous chemicals used and store
on site.
What does the term "Volatilized" mean and how does it relate to Anaerobic
bacteria? - ANSWER-When something is converted into a gas.
Methane forming bacteria convert organic acids into gases.
What is "Duckweed" and how does it affect a lagoon's health? - ANSWER-A
small invasive plant that floats on the surface of the water, blocking sunlight
and creating surface condition issues.
What is the main purpose of a "Lift Station" in a Collection System? -
ANSWER-Used to move wastewater to a higher elevation so gravity can take
over as the main force moving the flow towards the treatment plant.
What is the difference between what type of building would use different
Voltage?
( - - - 220 - - - 440 ) - ANSWER- : Residential or Small
Commercial
220 : Large Commercial or Hospital
, 440 : Industrial
What is the percent range required for confined spaces without the need for
individual breathing system? - ANSWER-19.5% - 23.5%
What is the weight of Hydrogen Sulfide compared to normal air? - ANSWER-It
is slightly heavier than normal air
What are the 3 jobs on a confined space crew? - ANSWER-Entry Supervisor /
Entrant / Attendant
Who is allowed to enter a P.R.C.S. job site besides the Entrant? - ANSWER-No
one on the work crew.
Properly trained emergency responders may enter in case of emergency.
What is the most general definition of a "Confined Space"? - ANSWER-A
location that has limited or restricted means for entry or exit and is not designed
for continuous occupancy.
What chemical is commonly used to remove Chlorine from the effluent flow? -
ANSWER-Sulfur Dioxide
What is the difference between "Mesophilic" & "Thermophilic" bacteria? -
ANSWER-Mesophilic bacteria grow best at moderate temperatures [ 68°F
(20°C) - 113°F (45°C) ].
Most human pathogens and the organisms in the human microbiome are
mesophilic.
