Aquatic Facility Operator (AFO) Certification
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026
1. Emergency action plans should be
A. Written, posted, and rehearsed regularly
B. Memorized by one staff member only
C. Optional for small facilities
D. Used only for chemical spills
<<Correct Answer>> A
Preparedness requires accessible and practiced plans. .
2 Proper bather load signage helps
A. Reduce chemical costs
B. Limit pool use to safe capacity
C. Improve aesthetics
D. Reduce staff requirements
<<Correct Answer>> B
Posting limits prevents overcrowding and ensures safety.
3.Training for Aquatic Facility Operators typically includes
,A. Only chemical handling
B. Safety, water chemistry, operations, and emergency response
C. Only lifeguard skills
D. Only mechanical maintenance
<<Correct Answer>> B
Comprehensive training ensures safe facility management.
3. The main purpose of pool circulation is to
A. Increase water temperature
B. Distribute chemicals evenly and remove contaminants
C. Reduce evaporation
D. Improve water clarity only
<<Correct Answer>> B
Circulation ensures proper filtration and uniform chemical
distribution
throughout the pool.
4. Turnover rate refers to
A. The time required to replace all pool water
B. The time required to circulate the entire pool volume
through
,the filter
C. The rate of chemical decay
D. The speed of swimmer movement
<<Correct Answer>> B
Turnover rate is a key regulatory requirement related to
filtration
effectiveness.
5. The most common disinfectant used in swimming pools is
A. Bromine
B. Ozone
C. Chlorine
D. UV light
<<Correct Answer>> C
Chlorine is widely used due to its effectiveness, availability, and
residual
protection.
6. Free available chlorine (FAC) measures
A. Total chlorine in the water
B. Chlorine combined with ammonia
C. Chlorine available for disinfection
, D. Chlorine lost to sunlight
<<Correct Answer>> C
FAC represents the active disinfectant capable of killing
pathogens.
7. Combined chlorine is also known as
A. Free chlorine
B. Chloramines
C. Cyanurates
D. Hypochlorite
<<Correct Answer>> B
Chloramines form when chlorine reacts with nitrogen-
containing
compounds.
8. Ideal pH range for most swimming pools is
A. 6.5–7.0
B. 7.2–7.8
C. 8.0–8.5
D. 9.0–9.5
<<Correct Answer>> B
This range balances bather comfort, chlorine effectiveness, and
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026
1. Emergency action plans should be
A. Written, posted, and rehearsed regularly
B. Memorized by one staff member only
C. Optional for small facilities
D. Used only for chemical spills
<<Correct Answer>> A
Preparedness requires accessible and practiced plans. .
2 Proper bather load signage helps
A. Reduce chemical costs
B. Limit pool use to safe capacity
C. Improve aesthetics
D. Reduce staff requirements
<<Correct Answer>> B
Posting limits prevents overcrowding and ensures safety.
3.Training for Aquatic Facility Operators typically includes
,A. Only chemical handling
B. Safety, water chemistry, operations, and emergency response
C. Only lifeguard skills
D. Only mechanical maintenance
<<Correct Answer>> B
Comprehensive training ensures safe facility management.
3. The main purpose of pool circulation is to
A. Increase water temperature
B. Distribute chemicals evenly and remove contaminants
C. Reduce evaporation
D. Improve water clarity only
<<Correct Answer>> B
Circulation ensures proper filtration and uniform chemical
distribution
throughout the pool.
4. Turnover rate refers to
A. The time required to replace all pool water
B. The time required to circulate the entire pool volume
through
,the filter
C. The rate of chemical decay
D. The speed of swimmer movement
<<Correct Answer>> B
Turnover rate is a key regulatory requirement related to
filtration
effectiveness.
5. The most common disinfectant used in swimming pools is
A. Bromine
B. Ozone
C. Chlorine
D. UV light
<<Correct Answer>> C
Chlorine is widely used due to its effectiveness, availability, and
residual
protection.
6. Free available chlorine (FAC) measures
A. Total chlorine in the water
B. Chlorine combined with ammonia
C. Chlorine available for disinfection
, D. Chlorine lost to sunlight
<<Correct Answer>> C
FAC represents the active disinfectant capable of killing
pathogens.
7. Combined chlorine is also known as
A. Free chlorine
B. Chloramines
C. Cyanurates
D. Hypochlorite
<<Correct Answer>> B
Chloramines form when chlorine reacts with nitrogen-
containing
compounds.
8. Ideal pH range for most swimming pools is
A. 6.5–7.0
B. 7.2–7.8
C. 8.0–8.5
D. 9.0–9.5
<<Correct Answer>> B
This range balances bather comfort, chlorine effectiveness, and
