AWWA Certification Prep Course Exam
Questions And All Correct Answers.
A watercourse that flows continuously at all times of the year is known as what? - Answer
Perennial stream
What is defined as 'the killing or inactivation of pathogenic organisms in water'? - Answer
Disinfection
Free chlorine residual values are based on a contact time of how long? - Answer 10 mins
What time of day does algae cause the pH of the water decrease? - Answer Night time
What contributes to the creation of algae blooms? - Answer Increased nutrients
What is found mainly in groundwater sources and forms a precipitate when oxidized? - Answer
Iron
The riparian doctrine is also known as what? - Answer Rule of reasonable sharing
What is the typical strength of calcium hypochlorite, i.e. available chlorine range? - Answer 65-
70%
Which chemicals will raise pH? - Answer Soda ash,
Lime,
Caustic soda
What should be used by an operator to test for residual chlorine? - Answer DPD (N, N-diethyl-
p-phenylenediamine)
pH is a measure of? - Answer Hydrogen ion concentration
, If only two rings of packing are used in the stuffing box, how should the joints should be? -
Answer Staggered
Opening the discharge valve one full turn on a chlorine cylinder will? - Answer Permit
maximum discharge
What defines the term "C value"? - Answer Number that describes the smoothness of the
interior of a pipe
Tubercles can form on which type of pipe? - Answer Ductile iron
Which disease is capable of being transmitted by water? - Answer Typhoid
Which act directly impacts the treatment of drinking water? - Answer Safe water drinking act
Corrosive water acting on a customers plumbing may cause which metal to enter their drinking
water? - Answer Lead
What is the most common water complaint? - Answer Objectionable taste and/or odor
According to the Surface Water Treatment Rule, water systems serving a population greater
than 500 Persons must sample the filtered water for turbidity how often? - Answer Every 4
hours
For surface water systems without filtration, the SWTR requires public water systems to? -
Answer Maintain a C x T value above the minimum value
At a minimum, surface water treatment systems must treat for? - Answer Coliform bacteria
and turbidity
What US agency establishes drinking water standards? - Answer USEPA
What is the ratio of lime to copper sulfate for controlling algae growth on basin walls? - Answer
Questions And All Correct Answers.
A watercourse that flows continuously at all times of the year is known as what? - Answer
Perennial stream
What is defined as 'the killing or inactivation of pathogenic organisms in water'? - Answer
Disinfection
Free chlorine residual values are based on a contact time of how long? - Answer 10 mins
What time of day does algae cause the pH of the water decrease? - Answer Night time
What contributes to the creation of algae blooms? - Answer Increased nutrients
What is found mainly in groundwater sources and forms a precipitate when oxidized? - Answer
Iron
The riparian doctrine is also known as what? - Answer Rule of reasonable sharing
What is the typical strength of calcium hypochlorite, i.e. available chlorine range? - Answer 65-
70%
Which chemicals will raise pH? - Answer Soda ash,
Lime,
Caustic soda
What should be used by an operator to test for residual chlorine? - Answer DPD (N, N-diethyl-
p-phenylenediamine)
pH is a measure of? - Answer Hydrogen ion concentration
, If only two rings of packing are used in the stuffing box, how should the joints should be? -
Answer Staggered
Opening the discharge valve one full turn on a chlorine cylinder will? - Answer Permit
maximum discharge
What defines the term "C value"? - Answer Number that describes the smoothness of the
interior of a pipe
Tubercles can form on which type of pipe? - Answer Ductile iron
Which disease is capable of being transmitted by water? - Answer Typhoid
Which act directly impacts the treatment of drinking water? - Answer Safe water drinking act
Corrosive water acting on a customers plumbing may cause which metal to enter their drinking
water? - Answer Lead
What is the most common water complaint? - Answer Objectionable taste and/or odor
According to the Surface Water Treatment Rule, water systems serving a population greater
than 500 Persons must sample the filtered water for turbidity how often? - Answer Every 4
hours
For surface water systems without filtration, the SWTR requires public water systems to? -
Answer Maintain a C x T value above the minimum value
At a minimum, surface water treatment systems must treat for? - Answer Coliform bacteria
and turbidity
What US agency establishes drinking water standards? - Answer USEPA
What is the ratio of lime to copper sulfate for controlling algae growth on basin walls? - Answer
