2024 FDEP WATER TREATMENT C
EXAM WITH CORRECT ANSWERS
Units that combine coagulation, Flocc, & sedimentation into a single basin
are: - CORRECT-ANSWERSSolid contact units
Valves that operate 90 degrees open to shut are: - CORRECT-
ANSWERSEccentric and butterfly
Water hardness is the measure of the concentrations of __________ and
__________ dissolved in the water sample. - CORRECT-ANSWERScalcium &
magnesium carbonates
Primary drinking water standards are set to protect the public from illnesses
as a direct result in drinking water that exceeds maximum set levels.
Secondary standards were set to alert the public to - CORRECT-
ANSWERSaesthetic issues with drinking water
When underground water is under pressure greater than atmospheric
pressure and could rise above the its confining space and above the ground
level is referred to as a - CORRECT-ANSWERSartesian effect
The water right to put it to beneficial use of the surface water adjacent to
your land is called ____________ water. - CORRECT-ANSWERSriparian
The electrical potential required to transfer electrons from one compound or
element to another is commonly referred to as - CORRECT-
ANSWERSoxidation-reduction potential (ORP)
pH is decreased by the removal of carbon dioxide - CORRECT-ANSWERStrue
what color is chlorine gas? - CORRECT-ANSWERSyellow
what is formed when chlorine reacts with ammonia? - CORRECT-
ANSWERSchlorimines
Calcium hypochlorite (Ca(OCl)2) - CORRECT-ANSWERSgranular Chlorine ,
Available Chlorine 40-78%
sodium hypochlorite (bleach) - CORRECT-ANSWERSNaClO (aq) 10-12%
available Chlorine
, How much iron bacteria must be present to form an infestation? - CORRECT-
ANSWERSone cell
What is the MCL for fluoride? - CORRECT-ANSWERS4.0 mg/L
How long are you required to keep the tap closed before you grab a sample
for lead and copper? - CORRECT-ANSWERS6 hours
What water source typically has the highest concentration of dissolved
solids? - CORRECT-ANSWERSground water
What is the purpose of a Lantern ring? - CORRECT-ANSWERScools and
lubricates packing
What occurs during the first part of chlorination? - CORRECT-
ANSWERSChlorine is destroyed by reducing compounds
What occurs during the second part of chlorination? - CORRECT-
ANSWERSformation of chloriganics and chlorimines (combined residual)
What occurs during the fourth part of chlorination? - CORRECT-ANSWERSFree
residual chlorine is formed called breakpoint chlorination
What occurs during the third part of chlorination? - CORRECT-
ANSWERSchloriganics and chlorimines are destroyed by pumping in more
chlorine
Which of the following is a strong acid - CORRECT-ANSWERSpH 1
Which of the following is a strong base? - CORRECT-ANSWERSpH 14
Which of the following methods is best for determining the depth of water in
a clearwell: - CORRECT-ANSWERSbubbler
Chlorine expands approximately how many times from liquid to gas? -
CORRECT-ANSWERS450
According to the safe water drinking act, the basic definition of public water
supply system is any water system that supplies water for human
consumption that serves: - CORRECT-ANSWERS15 service connections or
over 25 persons for over 60 days a year
Normally calcium and magnesium ions are expressed as ________ when
dealing with softening. - CORRECT-ANSWERSCaCo3
EXAM WITH CORRECT ANSWERS
Units that combine coagulation, Flocc, & sedimentation into a single basin
are: - CORRECT-ANSWERSSolid contact units
Valves that operate 90 degrees open to shut are: - CORRECT-
ANSWERSEccentric and butterfly
Water hardness is the measure of the concentrations of __________ and
__________ dissolved in the water sample. - CORRECT-ANSWERScalcium &
magnesium carbonates
Primary drinking water standards are set to protect the public from illnesses
as a direct result in drinking water that exceeds maximum set levels.
Secondary standards were set to alert the public to - CORRECT-
ANSWERSaesthetic issues with drinking water
When underground water is under pressure greater than atmospheric
pressure and could rise above the its confining space and above the ground
level is referred to as a - CORRECT-ANSWERSartesian effect
The water right to put it to beneficial use of the surface water adjacent to
your land is called ____________ water. - CORRECT-ANSWERSriparian
The electrical potential required to transfer electrons from one compound or
element to another is commonly referred to as - CORRECT-
ANSWERSoxidation-reduction potential (ORP)
pH is decreased by the removal of carbon dioxide - CORRECT-ANSWERStrue
what color is chlorine gas? - CORRECT-ANSWERSyellow
what is formed when chlorine reacts with ammonia? - CORRECT-
ANSWERSchlorimines
Calcium hypochlorite (Ca(OCl)2) - CORRECT-ANSWERSgranular Chlorine ,
Available Chlorine 40-78%
sodium hypochlorite (bleach) - CORRECT-ANSWERSNaClO (aq) 10-12%
available Chlorine
, How much iron bacteria must be present to form an infestation? - CORRECT-
ANSWERSone cell
What is the MCL for fluoride? - CORRECT-ANSWERS4.0 mg/L
How long are you required to keep the tap closed before you grab a sample
for lead and copper? - CORRECT-ANSWERS6 hours
What water source typically has the highest concentration of dissolved
solids? - CORRECT-ANSWERSground water
What is the purpose of a Lantern ring? - CORRECT-ANSWERScools and
lubricates packing
What occurs during the first part of chlorination? - CORRECT-
ANSWERSChlorine is destroyed by reducing compounds
What occurs during the second part of chlorination? - CORRECT-
ANSWERSformation of chloriganics and chlorimines (combined residual)
What occurs during the fourth part of chlorination? - CORRECT-ANSWERSFree
residual chlorine is formed called breakpoint chlorination
What occurs during the third part of chlorination? - CORRECT-
ANSWERSchloriganics and chlorimines are destroyed by pumping in more
chlorine
Which of the following is a strong acid - CORRECT-ANSWERSpH 1
Which of the following is a strong base? - CORRECT-ANSWERSpH 14
Which of the following methods is best for determining the depth of water in
a clearwell: - CORRECT-ANSWERSbubbler
Chlorine expands approximately how many times from liquid to gas? -
CORRECT-ANSWERS450
According to the safe water drinking act, the basic definition of public water
supply system is any water system that supplies water for human
consumption that serves: - CORRECT-ANSWERS15 service connections or
over 25 persons for over 60 days a year
Normally calcium and magnesium ions are expressed as ________ when
dealing with softening. - CORRECT-ANSWERSCaCo3
