1
Florida (FL) Septic Tank Contractor
Practice Exam 2026-2027
What is the primary purpose of a septic tank?
A. Disinfect wastewater
B. Store and partially treat wastewater
C. Pump wastewater to municipal sewer
D. Filter drinking water
Answer: B. Store and partially treat wastewater
Rationale: A septic tank allows solids to settle and begins anaerobic decomposition.
2.
Which agency regulates onsite sewage systems in Florida?
A. EPA only
B. OSHA
C. Florida Department of Health
D. FEMA
Answer: C. Florida Department of Health
Rationale: The Florida Department of Health oversees septic system permitting and regulation.
3.
What is the purpose of a drainfield?
A. Store wastewater
B. Treat and disperse effluent into soil
C. Pump water uphill
D. Separate grease
, 2
Answer: B. Treat and disperse effluent into soil
Rationale: The drainfield allows effluent to percolate through soil for natural treatment.
4.
What does a percolation test measure?
A. Water pressure
B. Soil absorption rate
C. Tank volume
D. Pipe diameter
Answer: B. Soil absorption rate
Rationale: Perc tests determine how quickly soil absorbs water.
5.
Which soil type has the fastest percolation rate?
A. Clay
B. Silt
C. Sand
D. Loam
Answer: C. Sand
Rationale: Sandy soil allows rapid water infiltration.
6.
Which soil type has the slowest percolation rate?
A. Sand
B. Clay
C. Gravel
D. Rock
Answer: B. Clay
Rationale: Clay has very low permeability and absorbs water slowly.
, 3
7.
What is the main function of baffles in a septic tank?
A. Increase water flow
B. Prevent solids from entering the drainfield
C. Pump effluent
D. Increase oxygen levels
Answer: B. Prevent solids from entering the drainfield
Rationale: Baffles help retain solids within the tank.
8.
What is effluent?
A. Raw sewage
B. Treated liquid leaving the septic tank
C. Solid waste
D. Groundwater
Answer: B. Treated liquid leaving the septic tank
Rationale: Effluent is the liquid discharged from the tank to the drainfield.
9.
How often should a septic tank typically be pumped?
A. Every month
B. Every 1–3 years (depending on use)
C. Every 10 years
D. Never
Answer: B. Every 1–3 years (depending on use)
Rationale: Regular pumping prevents solids buildup and system failure.
10.
What is a sign of a failing septic system?
, 4
A. Clear drainfield
B. Slow drains and odors
C. Low water usage
D. Dry soil only
Answer: B. Slow drains and odors
Rationale: These indicate system overload or failure.
11.
What is the minimum distance required between a septic tank and a water well in Florida
(general guideline)?
A. 5 feet
B. 25 feet
C. 75–100 feet (varies by code)
D. 200 feet only
Answer: C. 75–100 feet (varies by code)
Rationale: Separation distances protect drinking water from contamination.
12.
Which component separates solids and liquids in a septic tank?
A. Pump
B. Baffles
C. Pipes
D. Filters only
Answer: B. Baffles
Rationale: Baffles slow flow and allow solids to settle.
13.
What happens to solids in a septic tank?
A. They dissolve completely
B. They settle and form sludge
Florida (FL) Septic Tank Contractor
Practice Exam 2026-2027
What is the primary purpose of a septic tank?
A. Disinfect wastewater
B. Store and partially treat wastewater
C. Pump wastewater to municipal sewer
D. Filter drinking water
Answer: B. Store and partially treat wastewater
Rationale: A septic tank allows solids to settle and begins anaerobic decomposition.
2.
Which agency regulates onsite sewage systems in Florida?
A. EPA only
B. OSHA
C. Florida Department of Health
D. FEMA
Answer: C. Florida Department of Health
Rationale: The Florida Department of Health oversees septic system permitting and regulation.
3.
What is the purpose of a drainfield?
A. Store wastewater
B. Treat and disperse effluent into soil
C. Pump water uphill
D. Separate grease
, 2
Answer: B. Treat and disperse effluent into soil
Rationale: The drainfield allows effluent to percolate through soil for natural treatment.
4.
What does a percolation test measure?
A. Water pressure
B. Soil absorption rate
C. Tank volume
D. Pipe diameter
Answer: B. Soil absorption rate
Rationale: Perc tests determine how quickly soil absorbs water.
5.
Which soil type has the fastest percolation rate?
A. Clay
B. Silt
C. Sand
D. Loam
Answer: C. Sand
Rationale: Sandy soil allows rapid water infiltration.
6.
Which soil type has the slowest percolation rate?
A. Sand
B. Clay
C. Gravel
D. Rock
Answer: B. Clay
Rationale: Clay has very low permeability and absorbs water slowly.
, 3
7.
What is the main function of baffles in a septic tank?
A. Increase water flow
B. Prevent solids from entering the drainfield
C. Pump effluent
D. Increase oxygen levels
Answer: B. Prevent solids from entering the drainfield
Rationale: Baffles help retain solids within the tank.
8.
What is effluent?
A. Raw sewage
B. Treated liquid leaving the septic tank
C. Solid waste
D. Groundwater
Answer: B. Treated liquid leaving the septic tank
Rationale: Effluent is the liquid discharged from the tank to the drainfield.
9.
How often should a septic tank typically be pumped?
A. Every month
B. Every 1–3 years (depending on use)
C. Every 10 years
D. Never
Answer: B. Every 1–3 years (depending on use)
Rationale: Regular pumping prevents solids buildup and system failure.
10.
What is a sign of a failing septic system?
, 4
A. Clear drainfield
B. Slow drains and odors
C. Low water usage
D. Dry soil only
Answer: B. Slow drains and odors
Rationale: These indicate system overload or failure.
11.
What is the minimum distance required between a septic tank and a water well in Florida
(general guideline)?
A. 5 feet
B. 25 feet
C. 75–100 feet (varies by code)
D. 200 feet only
Answer: C. 75–100 feet (varies by code)
Rationale: Separation distances protect drinking water from contamination.
12.
Which component separates solids and liquids in a septic tank?
A. Pump
B. Baffles
C. Pipes
D. Filters only
Answer: B. Baffles
Rationale: Baffles slow flow and allow solids to settle.
13.
What happens to solids in a septic tank?
A. They dissolve completely
B. They settle and form sludge
