Water Treatment Exam Questions with Actual Answers
Graded A+
______ is a measure of the hydrogen ion concentration presence in water
pH
What steps are involved in the MTF method
Presumed, Confirmed, Completed tests
Conductivity is a measure of the ability of an aqueous solution to do what
carry current
Describe the characteristics of carbon dioxide
Colorless odorless and naturally occurring in all water
In regard to the testing of coagulant effectiveness which method is the most readily available to
most operators and has been commonly used for years
Jar test
Which of the following does the saturation point of calcium carbonate primarily depend upon
PH
Which of the following will increase pH, Hardness, and Alkalinity?
Lime
Which chemical used for stabilization of potable water is a bacterial nutrient?
polyphosphate
, Wastewater water quality discharge requirements could be exceeded if which of the following
chemicals are used for corrosion control in the water system
Hexametaphosphate
Lime is commonly used for corrosion control because
it can adjusts both PH and Alkalinity
Buildup of corrosion products ( a process known as ______) or uncontrolled scale deposits can
seriously reduce pipeline capacity and increase resistance to flow
tuberculation
Unslaked lime
quicklime
Of the metals tin, Zinc and Aluminum which us the most likely to corrode
Zinc
What is the principal source of excessive lead and copper in customers water
corrosion of household plumbing
The three reasons that lime is the most common chemical used for PH and Alkalinity
Adjustment
Availability, Inexpensive, easy to feed
CaCO3 is the _______ of calcium Carbonate
chemical formula
Molarity is the number of
moles of solute per liter of solution
The first step to calculating percent by weight of an element in a compound is to determine the
Graded A+
______ is a measure of the hydrogen ion concentration presence in water
pH
What steps are involved in the MTF method
Presumed, Confirmed, Completed tests
Conductivity is a measure of the ability of an aqueous solution to do what
carry current
Describe the characteristics of carbon dioxide
Colorless odorless and naturally occurring in all water
In regard to the testing of coagulant effectiveness which method is the most readily available to
most operators and has been commonly used for years
Jar test
Which of the following does the saturation point of calcium carbonate primarily depend upon
PH
Which of the following will increase pH, Hardness, and Alkalinity?
Lime
Which chemical used for stabilization of potable water is a bacterial nutrient?
polyphosphate
, Wastewater water quality discharge requirements could be exceeded if which of the following
chemicals are used for corrosion control in the water system
Hexametaphosphate
Lime is commonly used for corrosion control because
it can adjusts both PH and Alkalinity
Buildup of corrosion products ( a process known as ______) or uncontrolled scale deposits can
seriously reduce pipeline capacity and increase resistance to flow
tuberculation
Unslaked lime
quicklime
Of the metals tin, Zinc and Aluminum which us the most likely to corrode
Zinc
What is the principal source of excessive lead and copper in customers water
corrosion of household plumbing
The three reasons that lime is the most common chemical used for PH and Alkalinity
Adjustment
Availability, Inexpensive, easy to feed
CaCO3 is the _______ of calcium Carbonate
chemical formula
Molarity is the number of
moles of solute per liter of solution
The first step to calculating percent by weight of an element in a compound is to determine the
