Florida Drinking Water Operator Study Guide
Questions with 100% Correct & Trusted Solutions
How much water is needed for a bac T sample? - Answer 100 ml
What do low pH and iron bacteria in the water cause? - Answer Red water problems
Brackish water is considered to be between _____ and _____ Total Dissolved Solids (TDS) - Answer
1,000 - 10,000 TDS
What is the MCL for the secondary standard for odor? - Answer 3 Threshold odor number (TON)
What is the MCL for the secondary standard for sulfate? - Answer 250 mg/l
What is the MCL for the secondary standard for manganese? - Answer 0.05 mg/l
What is the MCL for the secondary standard for iron? - Answer 0.3 mg/l
What is the maximum residual disinfectant level for chlorine? - Answer 4.0 mg/l
What is the MCL for halo acetic acids (HAA5) - Answer 0.06 mg/l
What is the MCL for TTHM's - Answer 0.08
A class "C" Conventional filtration plant treats how much water? - Answer 0.3 MGD up to 1.0 MGD
A class "B" Conventional filtration plant treats how much water? - Answer 1.0 MGD up to 5.0 MGD
A class "A" Conventional filtration plant treats how much water? - Answer 5 MGD and above
,Classify this plant:
A real estate developer drills a well and provides the water to 17 homes in the development - Answer
Community water system
Classify this plant:
a farmer has a spring on his farm and provides drinking water to 16 of his neighbors for free - Answer
Community water system
Classify this plant:
A hospital with its own well and water treatment system - Answer Non-transient Noncommunity
What is the name of the upper thermal stratification layer? - Answer Epilimnion
What is the name of the middle thermal stratification layer - Answer Metalimnion / Thermocline
What is the name of the lower thermal stratification layer - Answer Hypolimnion
What are the causes of impurities in water? - Answer Airborne contamination
Animal wastes
Decaying plant material
Industrial discharge
Land erosion
What are the causes of surface water pollution? - Answer Biological *bacteria and plankton
Inorganic material *minerals
, Nature
People
Suspended and dissolved organics
What diseases can be transmitted through water? - Answer Cholera
Dysentery
Gastroenteritis
Giardiasis
Hepatitis
Typhoid
Why must sludge from a treatment plant using alum not be applied to agricultural land? - Answer Alum
sludge will harden the soil
In the event of significant fluoride chemical overfeeding, what should be done? - Answer Shut down the
plant and notify local and state health departments
True or false
Gravimetric feeders are usually more accurate than volumetric feeders? - Answer True
A water sample has been filtered for an analysis of color. Which color type will be determined? - Answer
True color
Activated alumina is effective at removing which contaminant? - Answer Arsenic
What are some of the first signs of hydrofluosilicic acid inhalation? - Answer Throat and nose irritation
along with nosebleed
Questions with 100% Correct & Trusted Solutions
How much water is needed for a bac T sample? - Answer 100 ml
What do low pH and iron bacteria in the water cause? - Answer Red water problems
Brackish water is considered to be between _____ and _____ Total Dissolved Solids (TDS) - Answer
1,000 - 10,000 TDS
What is the MCL for the secondary standard for odor? - Answer 3 Threshold odor number (TON)
What is the MCL for the secondary standard for sulfate? - Answer 250 mg/l
What is the MCL for the secondary standard for manganese? - Answer 0.05 mg/l
What is the MCL for the secondary standard for iron? - Answer 0.3 mg/l
What is the maximum residual disinfectant level for chlorine? - Answer 4.0 mg/l
What is the MCL for halo acetic acids (HAA5) - Answer 0.06 mg/l
What is the MCL for TTHM's - Answer 0.08
A class "C" Conventional filtration plant treats how much water? - Answer 0.3 MGD up to 1.0 MGD
A class "B" Conventional filtration plant treats how much water? - Answer 1.0 MGD up to 5.0 MGD
A class "A" Conventional filtration plant treats how much water? - Answer 5 MGD and above
,Classify this plant:
A real estate developer drills a well and provides the water to 17 homes in the development - Answer
Community water system
Classify this plant:
a farmer has a spring on his farm and provides drinking water to 16 of his neighbors for free - Answer
Community water system
Classify this plant:
A hospital with its own well and water treatment system - Answer Non-transient Noncommunity
What is the name of the upper thermal stratification layer? - Answer Epilimnion
What is the name of the middle thermal stratification layer - Answer Metalimnion / Thermocline
What is the name of the lower thermal stratification layer - Answer Hypolimnion
What are the causes of impurities in water? - Answer Airborne contamination
Animal wastes
Decaying plant material
Industrial discharge
Land erosion
What are the causes of surface water pollution? - Answer Biological *bacteria and plankton
Inorganic material *minerals
, Nature
People
Suspended and dissolved organics
What diseases can be transmitted through water? - Answer Cholera
Dysentery
Gastroenteritis
Giardiasis
Hepatitis
Typhoid
Why must sludge from a treatment plant using alum not be applied to agricultural land? - Answer Alum
sludge will harden the soil
In the event of significant fluoride chemical overfeeding, what should be done? - Answer Shut down the
plant and notify local and state health departments
True or false
Gravimetric feeders are usually more accurate than volumetric feeders? - Answer True
A water sample has been filtered for an analysis of color. Which color type will be determined? - Answer
True color
Activated alumina is effective at removing which contaminant? - Answer Arsenic
What are some of the first signs of hydrofluosilicic acid inhalation? - Answer Throat and nose irritation
along with nosebleed
