Water treatment operator test exam 2023 with 100% correct answers WasteWater Operator Certification Study Guide Grade 1 exam 2023 with 100% correct answers WasteWater Operator Certification Study Guide Grade 1 exam 2023 with 100% correct answers
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A continuously flowing watercourse Perennial Stream Algae causes PH to ....... at night Decrease What contributes to creation of algae blooms Increased nutrients Iron is found mostly in what sources of water Groundwater Also called the rule of reasonable sharing Ripa...
Voorbeeld 2 van de 6 pagina's
In winkelwagenA continuously flowing watercourse Perennial Stream Algae causes PH to ....... at night Decrease What contributes to creation of algae blooms Increased nutrients Iron is found mostly in what sources of water Groundwater Also called the rule of reasonable sharing Ripa...
Investigate immediately. If a consumer complains about the drinking water characteristics, the operator should record the complaint and Operating ratio What term is used when a water utility divides its total operating expenses into the total revenue? Daily How often should operatin...
Voorbeeld 2 van de 7 pagina's
In winkelwagenInvestigate immediately. If a consumer complains about the drinking water characteristics, the operator should record the complaint and Operating ratio What term is used when a water utility divides its total operating expenses into the total revenue? Daily How often should operatin...
What are the two important factors impacting the effectiveness of chlorination? Concentration of chlorine and contact time The treatment process that controls corrosion or scaling is known as what? Stabilization Permanganate reactions are highly dependent on what factor? pH I...
Voorbeeld 2 van de 5 pagina's
In winkelwagenWhat are the two important factors impacting the effectiveness of chlorination? Concentration of chlorine and contact time The treatment process that controls corrosion or scaling is known as what? Stabilization Permanganate reactions are highly dependent on what factor? pH I...
What is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% C) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous bacteria in...
Voorbeeld 3 van de 21 pagina's
In winkelwagenWhat is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% C) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous bacteria in...
What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately incr...
Voorbeeld 3 van de 22 pagina's
In winkelwagenWhat is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately incr...
1 mg/l is the same as 1 part per billion (ppb) True or False False (v.1 pg 468) A SCADA system is capable of monitoring and controlling equipment from a remote location True or False True (v.2 pg 627) A Discharge Monitoring Report is typically submitted to the regulatory agency...
Voorbeeld 3 van de 16 pagina's
In winkelwagen1 mg/l is the same as 1 part per billion (ppb) True or False False (v.1 pg 468) A SCADA system is capable of monitoring and controlling equipment from a remote location True or False True (v.2 pg 627) A Discharge Monitoring Report is typically submitted to the regulatory agency...
What are the main steps during the Hydrologic cycle? 1. Evaporation 2. Condensation 3. Transportation 4. Transpiration 5. Precipitation 6. Runoff Evaporation Defined as: Water is transferred from earths surface to atmosphere. -80% occurs from oceans -Evaporation occurs more at warm t...
Voorbeeld 3 van de 16 pagina's
In winkelwagenWhat are the main steps during the Hydrologic cycle? 1. Evaporation 2. Condensation 3. Transportation 4. Transpiration 5. Precipitation 6. Runoff Evaporation Defined as: Water is transferred from earths surface to atmosphere. -80% occurs from oceans -Evaporation occurs more at warm t...
What is MCL? Maximum Contaminent Level (MCL) A public water system is any system that serves a population greater that or equal to ? 15 services connections or 25 people regulary What is the Maximum total chlorine residual allowed by the Disinfectant-Disinfection By-Prouducts Rule 4...
Voorbeeld 2 van de 10 pagina's
In winkelwagenWhat is MCL? Maximum Contaminent Level (MCL) A public water system is any system that serves a population greater that or equal to ? 15 services connections or 25 people regulary What is the Maximum total chlorine residual allowed by the Disinfectant-Disinfection By-Prouducts Rule 4...
Spontaneous combustion can occur if activated carbon is mixed with... Potassium permanganate If chemical solutions gets on a person's skin, the area should be flushed _______________, and if the chemical dust are inhaled ______________________. with large quantities of water, consult a phy...
Voorbeeld 2 van de 8 pagina's
In winkelwagenSpontaneous combustion can occur if activated carbon is mixed with... Potassium permanganate If chemical solutions gets on a person's skin, the area should be flushed _______________, and if the chemical dust are inhaled ______________________. with large quantities of water, consult a phy...
Ammonia mixed with chlorine gas creates a white smoke The most difficult part of a water distribution operator's job. furnish a continuous supply Physical connection between a safe and potentially unsafe water source. cross connection A distribution system is a looped syste...
Voorbeeld 2 van de 10 pagina's
In winkelwagenAmmonia mixed with chlorine gas creates a white smoke The most difficult part of a water distribution operator's job. furnish a continuous supply Physical connection between a safe and potentially unsafe water source. cross connection A distribution system is a looped syste...
In the activated sludge process, some of the activated sludge must be wasted to... A. Prevent excessive solid buildup B. Prevent clogging of the sludge return line C. Prevent overloading of sludge return pumps D. Increase digester gas production A. Prevent excessive solid buildup The b...
Voorbeeld 2 van de 12 pagina's
In winkelwagenIn the activated sludge process, some of the activated sludge must be wasted to... A. Prevent excessive solid buildup B. Prevent clogging of the sludge return line C. Prevent overloading of sludge return pumps D. Increase digester gas production A. Prevent excessive solid buildup The b...
If a customer complains about the drinking water characteristics, the operator should record the complaint and... Investigate immediately What term is used when a water utility divides its total operating expenses into a total revenue? Operating ratio How often should data, such as f...
Voorbeeld 2 van de 8 pagina's
In winkelwagenIf a customer complains about the drinking water characteristics, the operator should record the complaint and... Investigate immediately What term is used when a water utility divides its total operating expenses into a total revenue? Operating ratio How often should data, such as f...
Surface water runoff, storm water, sanitary and industrial. A collection system that is called "combined" may carry this kind of wastewater: 2 The flow in a collection system should be a minimum of ____ feet per second (FPS)? Solids will settle. What will happen if the flow is too...
Voorbeeld 4 van de 47 pagina's
In winkelwagenSurface water runoff, storm water, sanitary and industrial. A collection system that is called "combined" may carry this kind of wastewater: 2 The flow in a collection system should be a minimum of ____ feet per second (FPS)? Solids will settle. What will happen if the flow is too...
Presedimentation Reduce silt in water Settling zone Calm area in settling basin where suspended materials settle Coagulation Occurs in Seconds Flocculation Occurs in Minutes (optimum velocity 0.5 fps) Floc should be popcorn sized Sedimentation Occurs in Hours (4 hou...
Voorbeeld 3 van de 16 pagina's
In winkelwagenPresedimentation Reduce silt in water Settling zone Calm area in settling basin where suspended materials settle Coagulation Occurs in Seconds Flocculation Occurs in Minutes (optimum velocity 0.5 fps) Floc should be popcorn sized Sedimentation Occurs in Hours (4 hou...
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b) Kilopascals What units are used to measure water pressure? a) Kilowatts b) Kilopascals c) Horsepower d) Head units a) Exhaust fan Which of the following is NOT an example of PPE (Personal Protective Equipment)? a) Exhaust fan b) SCBA c) Face shield d) Traffic vest d) B...
Voorbeeld 2 van de 13 pagina's
In winkelwagenb) Kilopascals What units are used to measure water pressure? a) Kilowatts b) Kilopascals c) Horsepower d) Head units a) Exhaust fan Which of the following is NOT an example of PPE (Personal Protective Equipment)? a) Exhaust fan b) SCBA c) Face shield d) Traffic vest d) B...
1x verkocht
The first step in maintenance staff should take in properly locking and tagging out a piece of equipment is to alert the operator on duty When working in an area with two or more floor coverings, be sure that they are always Secured together When manually lifting any object be sure t...
Voorbeeld 1 van de 4 pagina's
In winkelwagenThe first step in maintenance staff should take in properly locking and tagging out a piece of equipment is to alert the operator on duty When working in an area with two or more floor coverings, be sure that they are always Secured together When manually lifting any object be sure t...
The main objective of a safety program is to _ _. prevent accidents _, _ _ is the most appropriate person for evaluating a potential safety hazard. you the operator _, _ _ has the most to gain from an effective safety program. you the operator For a water system to have an ...
Voorbeeld 4 van de 36 pagina's
In winkelwagenThe main objective of a safety program is to _ _. prevent accidents _, _ _ is the most appropriate person for evaluating a potential safety hazard. you the operator _, _ _ has the most to gain from an effective safety program. you the operator For a water system to have an ...
What is true about chlorine gas? It is 2.5 times heavier than air What is the typical BOD removal efficiency in a primary clarifier? 20 to 50% What does the "F" in F/M ratio represent? The food for the microorganisms flowing into the aeration tank, in lbs/day What describes...
Voorbeeld 2 van de 7 pagina's
In winkelwagenWhat is true about chlorine gas? It is 2.5 times heavier than air What is the typical BOD removal efficiency in a primary clarifier? 20 to 50% What does the "F" in F/M ratio represent? The food for the microorganisms flowing into the aeration tank, in lbs/day What describes...
____ and/or _________ in a water supply can discolor laundry, cause a bad taste in the water, and cause taste problems in beverages such as coffee and tea. Iron and/or Manganese Water systems that collect less than _____ coliform samples each month can have 1 positive sample and remain in co...
Voorbeeld 2 van de 6 pagina's
In winkelwagen____ and/or _________ in a water supply can discolor laundry, cause a bad taste in the water, and cause taste problems in beverages such as coffee and tea. Iron and/or Manganese Water systems that collect less than _____ coliform samples each month can have 1 positive sample and remain in co...
How many Training Hours and experience for a class D Water Operator 16 Hours Training and No Experience How many Training Hours and experience for a class C Water Operator 36 Hours Training and 1 year Experience How many Training Hours and experience for a class B Water Operator 100...
Voorbeeld 3 van de 18 pagina's
In winkelwagenHow many Training Hours and experience for a class D Water Operator 16 Hours Training and No Experience How many Training Hours and experience for a class C Water Operator 36 Hours Training and 1 year Experience How many Training Hours and experience for a class B Water Operator 100...
WasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? storm events WasteWater Sources & Characteristics: Combined wastewater is defined as sanitary wastewater and stormwater runoff ...
Voorbeeld 3 van de 17 pagina's
In winkelwagenWasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? storm events WasteWater Sources & Characteristics: Combined wastewater is defined as sanitary wastewater and stormwater runoff ...
Contamination Itroduction into water of micro organisms, chemicals, waste or wastwater which makes the water unfit for its intended use Disifection Process designed to kill or inactive most microorganisms in water Sterilization removal or destruction of all micro organisms in water,...
Voorbeeld 2 van de 8 pagina's
In winkelwagenContamination Itroduction into water of micro organisms, chemicals, waste or wastwater which makes the water unfit for its intended use Disifection Process designed to kill or inactive most microorganisms in water Sterilization removal or destruction of all micro organisms in water,...
A _____ flume is widely used for measuring wastewater flow. Parshall (Operation of Wastewater Treatment Plants, Volume 1 by Kenneth D. Kerri) Velocity of flow in a grit channel must be reduced to a range of ____ to _____ fps in order for grit to properly settle. .7 to 1.4 fps (Oper...
Voorbeeld 3 van de 29 pagina's
In winkelwagenA _____ flume is widely used for measuring wastewater flow. Parshall (Operation of Wastewater Treatment Plants, Volume 1 by Kenneth D. Kerri) Velocity of flow in a grit channel must be reduced to a range of ____ to _____ fps in order for grit to properly settle. .7 to 1.4 fps (Oper...
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