INSTALLER EXAMINATION COMPLETE
QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST
RELEASED
The Kentucky Certified Septic System Installer
Examination is administered through local health
departments under the Kentucky Cabinet for Health and
Family Services. The exam is based primarily on
Kentucky onsite sewage disposal regulations, installer
certification standards, septic system construction
requirements, environmental protection principles, and
proper installation practices. The exam is open-book,
requires a minimum passing score of 70%, and evaluates
competency in installing onsite wastewater systems
according to Kentucky regulations.
Exam Coverage
Kentucky septic regulations
, o Understanding certification requirements,
permits, inspections, and legal responsibilities.
Site and soil evaluation
o Determining site suitability through soil
characteristics, limiting layers, and drainage
conditions.
Percolation testing
o Interpreting soil absorption rates and their effect
on system sizing.
Septic tank components
o Identifying tank functions, baffles,
compartments, and wastewater treatment
processes.
Absorption field design
o Calculating trench lengths, layouts, spacing, and
loading rates.
Installation procedures
o Proper excavation, tank placement, piping
installation, and system startup.
Safety practices
, o Excavation safety, confined space awareness,
utility protection, and personal protective
equipment.
System inspections
o Verifying compliance before backfilling and final
approval.
Maintenance principles
o Recognizing signs of failure, troubleshooting
problems, and preventive maintenance.
Environmental protection
o Preventing groundwater contamination, surface
discharge issues, and public health hazards
o
1.
A newly installed septic tank receives wastewater from a
three-bedroom residence. What is the primary purpose of
the septic tank before wastewater enters the absorption
field?
A. Disinfect wastewater completely
B. Separate solids and partially treat wastewater
C. Aerate wastewater continuously
D. Remove all dissolved contaminants
, Answer: B
Rationale: Septic tanks primarily settle solids and allow
partial anaerobic treatment before effluent reaches the
absorption field.
2.
During a site evaluation, which soil characteristic most
directly influences whether an onsite wastewater system
can adequately treat and disperse wastewater?
A. Soil color only
B. Surface vegetation only
C. Soil permeability
D. Air temperature
Answer: C
Rationale: Soil permeability determines how wastewater
moves through soil and receives treatment.
3.
An installer discovers groundwater closer to the surface
than expected while excavating absorption trenches. What
should be the primary concern?