Download CT Septic License Exam Questions With Correct And Verified Answers 2025/2026 Absolutely 10 and more Exams Water and Wastewater Engineering in PDF only on Docsity!
CT Septic License Exam Questions With
Correct And Verified Answers
2025/2026 Absolutely 100% Correct.
Septic tanks are required to have all seams and drain holes sealed to make water tight.
true
all pretreatment units + distribution boxes are required to have KY approval numbers on them
true
equal-flow type distribution boxes may be installed on tamped sand or gravel
true
highest hole in hill side box does not have to be connected to inlet pipe
false
all distribution boxes shall be installed level
true
certified installer must lay out a septic system prior to evacuation to assure that adequate fall between components is possible
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
b. as light as possible to minimize soil compaction
the minimum lateral trench depth is 24 inches
false
soil + site conditions limit which type of on site sewage disposal system will work on a site
true
primary purpose of septic tank is to remove solids thru sewage thru settling
true
soil structure indicates amount of large pore spaces in soil, which are important to absorb sewage effluent from the lateral lines
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
e. all above
c. gray, green, blue or black colors in soil
certified installer must submit proposed system drawing prior to obtaining instillation permit
true
certified installer must lay out on site sewage system to determine if adequate fall is possible between components
true
you obtain permit to install system with lateral trenches no deeper than 10 inches. if home builder tells you that they do not want septic tank leaving hump in yard. what do you do?
a. bury tank deep enough in ground so no hump
b. install low profile septic tank
c. install regular septic tank + add fill soil dirt around tank so no hump left when yard is graded
d. either b or c
d. both b + c = install low profile septic tank or
install regular septic tank + add fill soil dirt around tank so no hump left when yard is graded
wire test is
a. test to determine if electrical wiring properly installed
b. test to determine whether lateral lines installed level
c. field test to determine if soil moisture will cause damage during lateral line excavation
d. all above
c. field test to determine if soil moisture will cause damage during lateral line excavation
maximum length for individual conventional lateral trench is
a. 100 feet
b. 200 feet
c. no maximum limit
d. 70 feet
b. 200 feet
the appropriate minimum spacing of conventional rock trench is
a. 5 feet on centers
b. 8 feet side wall to side wall
c. 8 feet on centers
c. 8 feet on centers
the appropriate minimum spacing of low pressure pipe system is
the setback distance from lateral trench for streams is
a. 25 feet
b. 50 feet
c. 70 feet
a. 25 feet
the setback distance from lateral trench for lakes is
a. 25 feet
b. 50 feet
c. 70 feet
b. 50 feet
back filling of system is permitted prior to final inspection providing inspections ports are placed in lateral trenches
false
soil fill added to shallow installed system must be of group three texture or better
true
certified installer not responsible for backfilling or finished grading over system if builder does work
false
when fill soil is added to lateral field area the sod layer must not be disturbed
false
fill soil is tampered how far below lateral field on down slope side?
a. 5 ft
b. 10 ft
c. 15 ft
d. 25 ft
c. 15 ft
access must be provided within 24 inches of surface grade to outlet end man hole of septic tank
false
distribution boxes shall be installed level with all connections rendered watertight
true
grease taps required for all establishments that manufacture or prepare food
true
when filling out an installers affidavit, elevations should be on-shot + recorded at?
a. beginning at trench only
b. middle of trench only
c. end of trench only
d. beginning, middle + end of trench
d. beginning, middle + end of trench
when applying for site evaluation you must
a. a location map to reach site
b. site drawing showing locations of, property lines with dimensions, existing + proposed structures, wells, streams, gulley's, easements, roads, drives, right away + proposed system locations
c. number of bedrooms, structure has garbage disposal + basement
d. all above
d. all above
a location map to reach site
site drawing showing locations of, property lines with dimensions, existing + proposed structures, wells, streams, gulley's, easements, roads, drives, right away + proposed system locations
number of bedrooms, structure has garbage disposal + basement
back hoe pits may be required by inspector on site of evaluation
true
lateral lines must be installed on contour at depth specified by local inspector
true
all finished grading shall be done to divert surface water towards lateral line
false
plastic distribution boxes shall be placed on tamped sand or gravel based
false
you are digging lateral trench + hit bed rock. what do you do?
a. rent hoe ram to remove bedrock
b. dynamite rock so removed with back hoe
c. call inspector
d. either a or b
c. call inspector
which type of lateral fields are approved for use in KY?
a. conventional gravel trenches or beds
b. leaching chambers
c. seepage pits
check water bill to see if using excessive amounts of water
call local inspector to trouble shoot system
you find builder has built house on lowest portion of lot. what do you do?
a. cut down area where lateral field goes so can get gravity flow from septic tank to lateral field
b. install dosing tank to lift sewage to approved area
c. dig lateral trenches deep enough to get gravity flow
d. a or b
b. install dosing tank to lift sewage to approved area
all nonperforated pipe shall be bedded in grillage
true
drip irrigation system include
a. advance treatment
b. air release valve
c. grinder pump
d. all above
e. a + b
e. a + b
a. advance treatment
b. air release valve
certified installer or permit holder is required to remain on construction site while work is being performed on system
true
what types of trench barrier material is approved?
a. 4 inch layer whole straw
b. synthetic fabric
c. roofing felt
d. plastic sheeting
e. both a + b
f. all above
e. both a + b
a. 4 inch layer whole straw
b. synthetic fabric
when constructing an evaporation/absorption lagoon where berm walls should be keyed into original soil at least 1 foot deep + 2 foot wide at base
true
drip irrigation is experimental onsite sewage disposable system option
false
mercury flow switches not allowed to be used on dosing pumps
false
when alternating lateral fields are installed what percentage of lateral field should be installed on each side of alternating valve?
a. 60% on one side + 40% other
b. 100% with other side capped off for later repairs
c. no set % for side
d. 50% on each
d. 50% on each
on sites where curtain drains are needed, the curtain drain must be installed to obtain final system approval
true
your shipment of trench rock has just been delivered on site. inspection of rock reveals fine material is mixed in with it. what do you do?
a. send load back to quarry
b. wash rock prior to installation to remove fine material
c. install gravel in trenches + wash
d. install rock without washing
e. either a or b
e. either a or b
a. send load back to quarry
b. wash rock prior to instillation to remove fine material
your shipment of trench rock has just been delivered to construction site. inspection reveals #9 stone was shipped. is this acceptable?
no
hole type perforated piping is acceptable to use in both curtain drains + lateral trenches
false
car washes, slaughter houses, factories, funeral parlors can produce waste that are not allowed to be disposed in an on site sewage disposable system
true
which of following special design requirements on high clay, group 4 sites?
a. 2 septic tank in series
b. separate laundry, gray water beds with no primary system size reduction
c. alternate lateral fields
d. dosing
e. all above
e. all above
a. 2 septic tank in series
given the following trench grades for leeching chamber system- do you see problem?
Line 1: Beginning 4'6'' Middle 4'11'' End 4'6''
Line 2: Beginning 5'2'' Middle 5'3'' End 5'2''
Line 3: Beginning 6'4'' Middle 6'4'' End 6'4''
a. no grade shots indicate trenches are level
b. no grade shots indicate not completely level but within limits
c. yes grade shots indicate not level + not within limits
d. yes all grade shots in inches instead of tenths of foot
c. yes grade shots indicate not level + not within limits
curtain drain bottoms shall be graded to provide positive drainage down slope to surface or a catchment basin
true
water leveling devices are to be used in equal flow + level distribution boxes
true
lagoons are required to be enclosed within 6 foot high chain linked fence or equivalent with no climb or locked gate
true
you are digging to next to last lateral line + notice that you do not have enough room to install last line. what did you do wrong?
a. nothing- someone moved flags + left site
b. nothing- local inspector did not flag enough for area
c. you laid out system using transit not working correctly
d. did not bother to completely lay out system prior to beginning excavation
d. did not bother to completely lay out system prior to beginning excavation
you are in process of connecting pipe line to septic tank + you notice light coming through seam between tank halves. what do you do?
a. ignore
b. seal opening so no light shines through + complain to tank manufacture
c. call tank manufacture + make them seal it
d. b or c
e. either b or c
b. seal opening so no light shines through + complain to tank manufacture
c. call tank manufacture + make them seal it
what is the total design daily waste flow (TDW) for 3 bedroom home using water flush toilets. how much conventional 2 foot wide lateral line should be installed in a group III Provisionally Suitable (PS) soil?
a. 330 TDW + 446 linear feet
b. 360 TDW + 486 linear feet
c. 249 TDW + 386 linear feet
d. 165 TDW + 223 linear feet
a. 330 TDW + 446 linear feet
