Washington Wastewater Treatment Operator 1
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WasteWater Operator Certification S... Water Treatment Operator Level 1 Sa... Waste Water Operator Lv 1 Exam Pre... wastew
99 terms 47 terms 49 terms 28 terms
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Terms in this set (134) Hide definitions
The first step the maintenance staff should take in A. Alert the operator on duty
properly locking and tagging out a piece of equipment is
to
A. Alert the operator on duty
B. Turn the equipment off at the motor control center
(MCC)
C. Pull the switch on the electrical panel to "OFF"
D. Fill out the tags
When working in an area with two or more floor B. Secured together
coverings (grating and checker plate), be sure that they
are always
A. Overlapping one another
B. Secured together
C. Separated from one another
D. At the entrances and exits only
When manually lifting any object, be sure to C. Keep it close to your body and use leg strength
A. Hold it at arm's length
B. Keep your back bent and hold it low
C. Keep it close to your body and use leg strength
D. Keep your knees locked and bend at the waist
,Oxygen deficiency becomes a concern when the oxygen A. 19.5%
level in a confined space is less than:
A. 19.5%
B. 22.5%
C. 25.5%
D. 28.5%
Which of the following provides safety information for D. MSDS
potentially hazardous or toxic materials?
A. CERCLA
B. OSHA
C. CFR
D. MSDS
Conventional activated sludge systems typically operate B. 2-5 mg/L
with a DO range of
A. 0-1 mg/L
B. 2-5 mg/L
C. 4-7 mg/L
D. 7-9 mg/L
Large debris (sticks, rocks, ect) large floating solids, and A. Screenings
fibrous maters (rags, strings, cloth, etc.) are categorized
as
A. Screenings
B. Scum
C. Grit
D. Floc
Pumps are often required to bring wastewater into B. Centrifugal
treatment plant. What types of pumps are typically used
to lift influent wastewater.
A. Air-lift
B. Centrifugal
C. Positive displacement
D. Progressing cavity
, The time it takes for a unit volume of wastewater to pass A. Detention time
entirely through a primary clarifier is called
A. Detention time
B. Hydraulic loading rate
C. Overflow time
D. Weir loading rate
After chlorine, what is the most common effluent D. Ultraviolet radiation
wastewater disinfection technique or agent used in the
U.S. today?
A. Bromine chloride
B. Chlorine dioxide
C. Ozone
D. Ultraviolet radiation
Healthy mixed liquor in an activated sludge process C. Light brown and frothy
should have what appearance?
A. Black with a gray foam
B. Dark brown, covered with a greasy tan foam
C. Light brown and frothy
D. Gray with no foam of any kind
Which of the following is a typical piece of flow A. Parshall flume
measuring equipment
A. Parshall flume
B. Nephelometer
C. Downward looking acoustic sensor
D. Counterweighted float level-sensor
A "dead" spot in an activated sludge biological reactor is A. An area where conditions are very calm and no mixing is taking place
typically identified visually as:
A. An area where conditions are very calm and no mixing
is taking place
B. An area where the sludge seems lighter than the rest of
the reactor contents
C. An area with only a small amount of foam on the
surface
D. An area with no foam on the surface
Leave the first rating
Students also studied
Flashcard sets Study guides
WasteWater Operator Certification S... Water Treatment Operator Level 1 Sa... Waste Water Operator Lv 1 Exam Pre... wastew
99 terms 47 terms 49 terms 28 terms
gqviet25 Preview sean_cunningham33 Preview P Mungertron Preview sam
Terms in this set (134) Hide definitions
The first step the maintenance staff should take in A. Alert the operator on duty
properly locking and tagging out a piece of equipment is
to
A. Alert the operator on duty
B. Turn the equipment off at the motor control center
(MCC)
C. Pull the switch on the electrical panel to "OFF"
D. Fill out the tags
When working in an area with two or more floor B. Secured together
coverings (grating and checker plate), be sure that they
are always
A. Overlapping one another
B. Secured together
C. Separated from one another
D. At the entrances and exits only
When manually lifting any object, be sure to C. Keep it close to your body and use leg strength
A. Hold it at arm's length
B. Keep your back bent and hold it low
C. Keep it close to your body and use leg strength
D. Keep your knees locked and bend at the waist
,Oxygen deficiency becomes a concern when the oxygen A. 19.5%
level in a confined space is less than:
A. 19.5%
B. 22.5%
C. 25.5%
D. 28.5%
Which of the following provides safety information for D. MSDS
potentially hazardous or toxic materials?
A. CERCLA
B. OSHA
C. CFR
D. MSDS
Conventional activated sludge systems typically operate B. 2-5 mg/L
with a DO range of
A. 0-1 mg/L
B. 2-5 mg/L
C. 4-7 mg/L
D. 7-9 mg/L
Large debris (sticks, rocks, ect) large floating solids, and A. Screenings
fibrous maters (rags, strings, cloth, etc.) are categorized
as
A. Screenings
B. Scum
C. Grit
D. Floc
Pumps are often required to bring wastewater into B. Centrifugal
treatment plant. What types of pumps are typically used
to lift influent wastewater.
A. Air-lift
B. Centrifugal
C. Positive displacement
D. Progressing cavity
, The time it takes for a unit volume of wastewater to pass A. Detention time
entirely through a primary clarifier is called
A. Detention time
B. Hydraulic loading rate
C. Overflow time
D. Weir loading rate
After chlorine, what is the most common effluent D. Ultraviolet radiation
wastewater disinfection technique or agent used in the
U.S. today?
A. Bromine chloride
B. Chlorine dioxide
C. Ozone
D. Ultraviolet radiation
Healthy mixed liquor in an activated sludge process C. Light brown and frothy
should have what appearance?
A. Black with a gray foam
B. Dark brown, covered with a greasy tan foam
C. Light brown and frothy
D. Gray with no foam of any kind
Which of the following is a typical piece of flow A. Parshall flume
measuring equipment
A. Parshall flume
B. Nephelometer
C. Downward looking acoustic sensor
D. Counterweighted float level-sensor
A "dead" spot in an activated sludge biological reactor is A. An area where conditions are very calm and no mixing is taking place
typically identified visually as:
A. An area where conditions are very calm and no mixing
is taking place
B. An area where the sludge seems lighter than the rest of
the reactor contents
C. An area with only a small amount of foam on the
surface
D. An area with no foam on the surface
