COMMERCIAL SEPTIC SYSTEM
INSTALLER LATEST EXAM 2025 WITH
QUESTIONS AND CORRECT ANSWERS
100% ORIGINAL VERIFIED,A+ GRADE
True or False: Walls and bottom of poured-in-place septic tanks
must be reinforced. - THE CORRECT ANSWER-True
How can a Septic tank be reinforced? - THE CORRECT ANSWER-six
inch by 6 inch (6"x6") No.10 gage welded steel reinforcing wire
OR fibrous reinforcing material conforming to ASTM
specifications for such materials.
How must Tank Lids be Reinforced? - THE CORRECT ANSWER-using
three-eights steel reinforcing rods (rebar) which shall be spaced
twelve inches (12") on center each way extending a minimum of
two and one half (2 1/2") inches and a maximum of three (3")
from the outside edge of the tank lid.
In general, the tank must be able to withstand a uniform live
load of ______________________ pounds per square foot
in addition to all loads to which an underground tank is
normally subjected. - THE CORRECT ANSWER-150
, True or False: Walls, bottoms, and lids of poured-in-place
septic tanks should have a minimum thickness of four inches
(4"). - THE CORRECT ANSWER-True
Tank lids shall be constructed in
______________________ pieces and shall have
securable, removable access openings located so that the inlet
and outlet tees can be
________________________________. - THE CORRECT
ANSWER-one or two,
readily accessed.
Access opening shall have a minimum of
_________________ and maximum of
___________________ free space. - THE CORRECT ANSWER-
Minimum: 15"
Maximum: 24"
Tanks with more than 12 inches of cover must extend access
openings to within ______ inches of the ground surface. - THE
CORRECT ANSWER-12
All tanks shall be equipped with
________________________________ rated or
equivalent tees at the inlet and outlet ends of the tank. - THE
CORRECT ANSWER-Four inch (4") PVC, ASTM 3034
Tees shall be constructed so they extend into the liquid a
minimum of ____________________ and a maximum of
INSTALLER LATEST EXAM 2025 WITH
QUESTIONS AND CORRECT ANSWERS
100% ORIGINAL VERIFIED,A+ GRADE
True or False: Walls and bottom of poured-in-place septic tanks
must be reinforced. - THE CORRECT ANSWER-True
How can a Septic tank be reinforced? - THE CORRECT ANSWER-six
inch by 6 inch (6"x6") No.10 gage welded steel reinforcing wire
OR fibrous reinforcing material conforming to ASTM
specifications for such materials.
How must Tank Lids be Reinforced? - THE CORRECT ANSWER-using
three-eights steel reinforcing rods (rebar) which shall be spaced
twelve inches (12") on center each way extending a minimum of
two and one half (2 1/2") inches and a maximum of three (3")
from the outside edge of the tank lid.
In general, the tank must be able to withstand a uniform live
load of ______________________ pounds per square foot
in addition to all loads to which an underground tank is
normally subjected. - THE CORRECT ANSWER-150
, True or False: Walls, bottoms, and lids of poured-in-place
septic tanks should have a minimum thickness of four inches
(4"). - THE CORRECT ANSWER-True
Tank lids shall be constructed in
______________________ pieces and shall have
securable, removable access openings located so that the inlet
and outlet tees can be
________________________________. - THE CORRECT
ANSWER-one or two,
readily accessed.
Access opening shall have a minimum of
_________________ and maximum of
___________________ free space. - THE CORRECT ANSWER-
Minimum: 15"
Maximum: 24"
Tanks with more than 12 inches of cover must extend access
openings to within ______ inches of the ground surface. - THE
CORRECT ANSWER-12
All tanks shall be equipped with
________________________________ rated or
equivalent tees at the inlet and outlet ends of the tank. - THE
CORRECT ANSWER-Four inch (4") PVC, ASTM 3034
Tees shall be constructed so they extend into the liquid a
minimum of ____________________ and a maximum of
