4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
Florida water treatment Class C Water Operator exam (601
Questions and Correct Answers)
Florida water treatment Class C Water Operator exam FLORIDA CLASS C WATER OPERATOR EXAM COVERAGE
The Florida Class C Water Operator exam evaluates foundational
knowledge of drinking water treatment systems and safe public water
supply operations. The exam coverage includes basic water chemistry,
microbiology, and water quality parameters such as pH, turbidity, and
disinfection requirements. It also assesses understanding of water
treatment processes including coagulation, flocculation, sedimentation,
filtration, and chlorination. Additional areas include system operation
and maintenance, pump and distribution basics, sampling procedures,
and monitoring of water quality standards. The exam further covers
safety practices, regulatory compliance with Florida DEP rules, and
proper recordkeeping and reporting requirements.
if the pump impeller is running backwards, what switch any two electrical leads
action must be taken to correct the rotation?
Which of the following is a type of pump that is Centrifugal
commonly used in a water treatment plant?
What is a multi-staged pump? has more than one impeller
What is an Ampere? a unit of measurement for current
When should the packing of a pump be adjusted? when the pump is running
when a pump fails to deliver at its rated capacity, air leak
what is most likely the cause?
what is a common cause for vibrations in a motor? misalignment of the couplings
What is the purpose of the wear rings in a pump? Plug internal leakage
what should the seal water pressure be for a pump? 5 psi higher than the pumps discharge pressure
what is the purpose of the seal water? block out air intake and lubricate the packing
what is the recommended maximum suction lift? 15 ft.
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 1/
8219-2a10449cf2ef 42
,4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
In a water treatment plant, what type of pump is Positive displacement
commonly used to deliver chemical solutions?
when should you lubricate your equipment? follow the manufacturer's recommendations
In what manner is packing installed? a strip at a time and staggered
a positive displacement pump should against a closed discharge valve
never be operated ?
if two of more pumps of the same size and alternate to equalize wear
purpose are online, what method of operation is
recommended for them?
If half of the mechanical seal fails, what corrective change both halves of the seal
action should be taken?
what is the purpose of a lantern ring? water seal
The packing of a pump should be adjusted to ? allow a slight operating leakage and allow approximately a drip per
second.
On a multiple drive motor, when a belt fails, what Replace all the belts on the drive
corrective action should be taken?
To keep a centrifugal pump primed, install a foot valve
valve at the end of the suction line.
If a motor fails to start, what should be checked first? Power supply
Opening or closing a valve rapidly will cause? water hammer
The formation and collapse of a gas pocket or cavitaion
bubble on the blade of an impeller is called?
Changing the packing on a pump is called corrective
maintenance
what is an example of a daily maintenance task for a drain the air receiver
compressor?
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 2/
8219-2a10449cf2ef 42
,4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
what type of valve is usually used to control the globe valve
rate of flow?
what type of valve is buried? non-rising stem
what is the most common valve type used in a water gate valve
treatment plant?
what will happen if the gate valve is left half open to Undue seat wear
control flow?
In what manner should carbon be stored? on concrete floor in single rows
what is brinelling? a type of bearing wear
what is the recommended manner for storing on a concrete floor away from heat or heated pipes
potassium permanganate?
what causes more damage to a pump's impeller? Air
What is the unit of electrical resistance? Ohm
What is an ammeter measures amps and current
what type of electrical service is usually found in three phase
water plants?
Generally, all motors over over two HP require what 3 phase
type of electrical service?
Before starting work on any electrical equipment, Lock out tag out
you must first ?
What unit is used to measure the rate of power Kilowatts
Consumption?
What is the function of a shear pin? to prevent damage to equipment when there is an overload
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 3/
8219-2a10449cf2ef 42
, 4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
The measurement of how close an instrument Accuracy
determines the true of actual reading of an
instrument is called?
The readout of an instrument by the use of a analog
pointer against a scale is an reading?
The device that controls the operation of controller
equipment is called?
The readout of an instrument by a direct digital
numerical reading of the measured value id called
a reading?
what is an instrument's ability to measure a precision
process value and repeatedly obtain the result
called?
what is the difference between the actual drift
value and desired value?
what is software? computer programs
A device that measures the accumulative amount Totalizer
of a process over a 24 hour period is called?
What is the Williams-Steiger Federal law known as OSHA
today?
Who is responsible for your safety in the workplace? yourself
your should never add to acid because it will water
cause a violent reaction.
what two chemicals widely used in water lime and alum (base and acid)
treatment will cause an explosion when mixed?
what is usually the first indication of a carbon fire? heat
what type of fire extinguisher is used for a carbon carbon dioxide
fire
what percentage of oxygen is there in air? 20.9%
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 4/
8219-2a10449cf2ef 42
PM
Florida water treatment Class C Water Operator exam (601
Questions and Correct Answers)
Florida water treatment Class C Water Operator exam FLORIDA CLASS C WATER OPERATOR EXAM COVERAGE
The Florida Class C Water Operator exam evaluates foundational
knowledge of drinking water treatment systems and safe public water
supply operations. The exam coverage includes basic water chemistry,
microbiology, and water quality parameters such as pH, turbidity, and
disinfection requirements. It also assesses understanding of water
treatment processes including coagulation, flocculation, sedimentation,
filtration, and chlorination. Additional areas include system operation
and maintenance, pump and distribution basics, sampling procedures,
and monitoring of water quality standards. The exam further covers
safety practices, regulatory compliance with Florida DEP rules, and
proper recordkeeping and reporting requirements.
if the pump impeller is running backwards, what switch any two electrical leads
action must be taken to correct the rotation?
Which of the following is a type of pump that is Centrifugal
commonly used in a water treatment plant?
What is a multi-staged pump? has more than one impeller
What is an Ampere? a unit of measurement for current
When should the packing of a pump be adjusted? when the pump is running
when a pump fails to deliver at its rated capacity, air leak
what is most likely the cause?
what is a common cause for vibrations in a motor? misalignment of the couplings
What is the purpose of the wear rings in a pump? Plug internal leakage
what should the seal water pressure be for a pump? 5 psi higher than the pumps discharge pressure
what is the purpose of the seal water? block out air intake and lubricate the packing
what is the recommended maximum suction lift? 15 ft.
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 1/
8219-2a10449cf2ef 42
,4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
In a water treatment plant, what type of pump is Positive displacement
commonly used to deliver chemical solutions?
when should you lubricate your equipment? follow the manufacturer's recommendations
In what manner is packing installed? a strip at a time and staggered
a positive displacement pump should against a closed discharge valve
never be operated ?
if two of more pumps of the same size and alternate to equalize wear
purpose are online, what method of operation is
recommended for them?
If half of the mechanical seal fails, what corrective change both halves of the seal
action should be taken?
what is the purpose of a lantern ring? water seal
The packing of a pump should be adjusted to ? allow a slight operating leakage and allow approximately a drip per
second.
On a multiple drive motor, when a belt fails, what Replace all the belts on the drive
corrective action should be taken?
To keep a centrifugal pump primed, install a foot valve
valve at the end of the suction line.
If a motor fails to start, what should be checked first? Power supply
Opening or closing a valve rapidly will cause? water hammer
The formation and collapse of a gas pocket or cavitaion
bubble on the blade of an impeller is called?
Changing the packing on a pump is called corrective
maintenance
what is an example of a daily maintenance task for a drain the air receiver
compressor?
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 2/
8219-2a10449cf2ef 42
,4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
what type of valve is usually used to control the globe valve
rate of flow?
what type of valve is buried? non-rising stem
what is the most common valve type used in a water gate valve
treatment plant?
what will happen if the gate valve is left half open to Undue seat wear
control flow?
In what manner should carbon be stored? on concrete floor in single rows
what is brinelling? a type of bearing wear
what is the recommended manner for storing on a concrete floor away from heat or heated pipes
potassium permanganate?
what causes more damage to a pump's impeller? Air
What is the unit of electrical resistance? Ohm
What is an ammeter measures amps and current
what type of electrical service is usually found in three phase
water plants?
Generally, all motors over over two HP require what 3 phase
type of electrical service?
Before starting work on any electrical equipment, Lock out tag out
you must first ?
What unit is used to measure the rate of power Kilowatts
Consumption?
What is the function of a shear pin? to prevent damage to equipment when there is an overload
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 3/
8219-2a10449cf2ef 42
, 4/30/26, 10:05 Florida water treatment Class C Water Operator exam
PM
The measurement of how close an instrument Accuracy
determines the true of actual reading of an
instrument is called?
The readout of an instrument by the use of a analog
pointer against a scale is an reading?
The device that controls the operation of controller
equipment is called?
The readout of an instrument by a direct digital
numerical reading of the measured value id called
a reading?
what is an instrument's ability to measure a precision
process value and repeatedly obtain the result
called?
what is the difference between the actual drift
value and desired value?
what is software? computer programs
A device that measures the accumulative amount Totalizer
of a process over a 24 hour period is called?
What is the Williams-Steiger Federal law known as OSHA
today?
Who is responsible for your safety in the workplace? yourself
your should never add to acid because it will water
cause a violent reaction.
what two chemicals widely used in water lime and alum (base and acid)
treatment will cause an explosion when mixed?
what is usually the first indication of a carbon fire? heat
what type of fire extinguisher is used for a carbon carbon dioxide
fire
what percentage of oxygen is there in air? 20.9%
https://quizlet.com/1173090910/florida-water-treatment-class-c-water-operator-exam-flash-cards/?funnelUUID=ac1ecf8b-3d5c-4fd0- 4/
8219-2a10449cf2ef 42
