SEPTIC LICENSE ACTUAL TEST PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
●● all pretreatment units + distribution boxes are required to have KY
approval numbers on them.
Answer: true
●● equal-flow type distribution boxes may be installed on tamped sand
or gravel.
Answer: true
●● highest hole in hill side box does not have to be connected to inlet
pipe.
Answer: false
●● all distribution boxes shall be installed level.
Answer: true
●● certified installer must lay out a septic system prior to evacuation to
assure that adequate fall between components is possible.
Answer: true
●● equipment used in constructing aseptic system should be:
,a. as heavy as possible to maximize soil compaction
b. as light as possible to minimize soil compaction
c. equipment weight does not matter.
Answer: b. as light as possible to minimize soil compaction
●● the minimum lateral trench depth is 24 inches.
Answer: false
●● soil + site conditions limit which type of on site sewage disposal
system will work on a site.
Answer: true
●● primary purpose of septic tank is to remove solids thru sewage thru
settling.
Answer: true
●● soil structure indicates amount of large pore spaces in soil, which are
important to absorb sewage effluent from the lateral lines.
Answer: true
●● gray water systems contain discharge from these fixtures.
Answer: laundry, hand wash sink, shower, bathtubs, laundry tubs
, ●● what is not considered gray water?
laundry, hand wash sink, shower, bathtubs, laundry tubs, food prep sink,
kitchen sink.
Answer: food prep sink + kitchen sink
●● slopes greater than 15% may be unstable when on-site sewage
disposable systems installed on them unless special designs
modifications made.
Answer: true
●● what natural process removes most of sewage effluent from lateral
trench?
a. evaporation
b. gravity flow
c. bacterial action
d. uptake by trees + grass.
Answer: b. gravity flow
●● seasonal water tables can be identified in dry months by
a. orange + red colors in soil
b. direct presence of water in soil when sampled
c. gray, green, blue or black colors in soil
d. presence of large flag stones
QUESTIONS WITH SOLUTIONS GRADED A+
●● all pretreatment units + distribution boxes are required to have KY
approval numbers on them.
Answer: true
●● equal-flow type distribution boxes may be installed on tamped sand
or gravel.
Answer: true
●● highest hole in hill side box does not have to be connected to inlet
pipe.
Answer: false
●● all distribution boxes shall be installed level.
Answer: true
●● certified installer must lay out a septic system prior to evacuation to
assure that adequate fall between components is possible.
Answer: true
●● equipment used in constructing aseptic system should be:
,a. as heavy as possible to maximize soil compaction
b. as light as possible to minimize soil compaction
c. equipment weight does not matter.
Answer: b. as light as possible to minimize soil compaction
●● the minimum lateral trench depth is 24 inches.
Answer: false
●● soil + site conditions limit which type of on site sewage disposal
system will work on a site.
Answer: true
●● primary purpose of septic tank is to remove solids thru sewage thru
settling.
Answer: true
●● soil structure indicates amount of large pore spaces in soil, which are
important to absorb sewage effluent from the lateral lines.
Answer: true
●● gray water systems contain discharge from these fixtures.
Answer: laundry, hand wash sink, shower, bathtubs, laundry tubs
, ●● what is not considered gray water?
laundry, hand wash sink, shower, bathtubs, laundry tubs, food prep sink,
kitchen sink.
Answer: food prep sink + kitchen sink
●● slopes greater than 15% may be unstable when on-site sewage
disposable systems installed on them unless special designs
modifications made.
Answer: true
●● what natural process removes most of sewage effluent from lateral
trench?
a. evaporation
b. gravity flow
c. bacterial action
d. uptake by trees + grass.
Answer: b. gravity flow
●● seasonal water tables can be identified in dry months by
a. orange + red colors in soil
b. direct presence of water in soil when sampled
c. gray, green, blue or black colors in soil
d. presence of large flag stones
