1|Page
Septic Installer License Test 2025 Latest Practice
Test Bank With 380 Approved Questions with
Correct Answers/ Septic License Exam Prep %
Correctly Answered Questions/ Sewage System
Installer Test
A grease trap is designed to remove grease and fat from
___
a. service station waste
b. commercial food preparation waste
c. industrial waste
d. home waste - ...ANSWER...✓✓ b. commercial food
preparation waste
A watertight, covered container designed and constructed
to receive sewage from a building
sewer for initial treatment and final discharge to a
subsurface wastewater infiltration area
(drain field) is a .
a. grease trap
b. distribution box
c. septic tank
,2|Page
d. tile field - ...ANSWER...✓✓ c. septic tank
The area of the lot or plot of ground where a conventional
onsite wastewater system is to
be installed shall be of sufficient size so that no part of
the system will be within
linear feet of a public well.
a. twenty-five (25)
b. fifty (50)
c. seventy-five (75)
d. one hundred (100) - ...ANSWER...✓✓ d. one hundred
(100)
A conventional wastewater infiltration trench (drain field)
must have a width of
inches.
a. eighteen (18)
b. fourteen (14)
c. twenty-four (24)
d. thirty-six (36) - ...ANSWER...✓✓ d. thirty-six (36)
, 3|Page
A conventional wastewater infiltration trench must
contain a minimum of
inches of clean, coarse aggregate.
a. six (6)
b. ten (10)
c. fourteen (14)
d. eighteen (18) - ...ANSWER...✓✓ c. fourteen (14)
The distribution (drain) pipe and aggregate (stone) in a
conventional wastewater infiltration
trench (drain field) must be covered with a minimum of
inches of earth cover.
a. six (6)
b. nine (9)
c. twelve (12)
d. fifteen (15) - ...ANSWER...✓✓ b. nine (9)
All buildings occupied for more than per day are required
to have sewage
disposal facilities which are approved by the health
department.
a. one (1) hour
Septic Installer License Test 2025 Latest Practice
Test Bank With 380 Approved Questions with
Correct Answers/ Septic License Exam Prep %
Correctly Answered Questions/ Sewage System
Installer Test
A grease trap is designed to remove grease and fat from
___
a. service station waste
b. commercial food preparation waste
c. industrial waste
d. home waste - ...ANSWER...✓✓ b. commercial food
preparation waste
A watertight, covered container designed and constructed
to receive sewage from a building
sewer for initial treatment and final discharge to a
subsurface wastewater infiltration area
(drain field) is a .
a. grease trap
b. distribution box
c. septic tank
,2|Page
d. tile field - ...ANSWER...✓✓ c. septic tank
The area of the lot or plot of ground where a conventional
onsite wastewater system is to
be installed shall be of sufficient size so that no part of
the system will be within
linear feet of a public well.
a. twenty-five (25)
b. fifty (50)
c. seventy-five (75)
d. one hundred (100) - ...ANSWER...✓✓ d. one hundred
(100)
A conventional wastewater infiltration trench (drain field)
must have a width of
inches.
a. eighteen (18)
b. fourteen (14)
c. twenty-four (24)
d. thirty-six (36) - ...ANSWER...✓✓ d. thirty-six (36)
, 3|Page
A conventional wastewater infiltration trench must
contain a minimum of
inches of clean, coarse aggregate.
a. six (6)
b. ten (10)
c. fourteen (14)
d. eighteen (18) - ...ANSWER...✓✓ c. fourteen (14)
The distribution (drain) pipe and aggregate (stone) in a
conventional wastewater infiltration
trench (drain field) must be covered with a minimum of
inches of earth cover.
a. six (6)
b. nine (9)
c. twelve (12)
d. fifteen (15) - ...ANSWER...✓✓ b. nine (9)
All buildings occupied for more than per day are required
to have sewage
disposal facilities which are approved by the health
department.
a. one (1) hour
