Commercial Septic System Installer Exam
Study online at https://quizlet.com/_3gvla0
1. All tanks must have: 2 compartments
2. All tanks whether pre-manufactured or con- at least one and one- half (1 1/2)
structed on site shall be constructed so that times... "to the width."
the length is ___________ compared to the
width.
3. Septic Tanks may be made of: Concrete, Plastic, fiberglass, or other
materials as approved by the depart-
ment.
4. Tank compartment partitions will be located: Not less than two-thirds or more than
three-fourths the Length of the tank
from the Inlet end.
5. Compartment partitions will be construct- Minimum 25% to a maximum of 50%
ed so a pass-thru hole or slot equal to or of the total liquid depth.
greater than the diameter of the inlet pipe
is positioned below the liquid surface with a
_____________________________.
6. Total liquid depth for larger poured-in-place 66 inches
tanks shall have a maximum of
______________inches
7. True or False: Walls and bottom of True
poured-in-place septic tanks must be rein-
forced.
8. How can a Septic tank be reinforced? six inch by 6 inch (6"x6") No.10 gage
welded steel reinforcing wire OR fi-
brous reinforcing material conforming
, Commercial Septic System Installer Exam
Study online at https://quizlet.com/_3gvla0
to ASTM specifications for such materi-
als.
9. How must Tank Lids be Reinforced? 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.
10. In general, the tank must be able to withstand 150
a uniform live load of ______________________
pounds per square foot in addition to all loads
to which an underground tank is normally sub-
jected.
11. True or False: Walls, bottoms, and lids of True
poured-in-place septic tanks should have a
minimum thickness of four inches (4").
12. Tank lids shall be constructed in one or two,
______________________ pieces and shall have readily accessed.
securable, removable access openings locat-
ed so that the inlet and outlet tees can be
________________________________.
13. Access opening shall have a minimum Minimum: 15"
of _________________ and maximum of Maximum: 24"
___________________ free space.
14. 12
Study online at https://quizlet.com/_3gvla0
1. All tanks must have: 2 compartments
2. All tanks whether pre-manufactured or con- at least one and one- half (1 1/2)
structed on site shall be constructed so that times... "to the width."
the length is ___________ compared to the
width.
3. Septic Tanks may be made of: Concrete, Plastic, fiberglass, or other
materials as approved by the depart-
ment.
4. Tank compartment partitions will be located: Not less than two-thirds or more than
three-fourths the Length of the tank
from the Inlet end.
5. Compartment partitions will be construct- Minimum 25% to a maximum of 50%
ed so a pass-thru hole or slot equal to or of the total liquid depth.
greater than the diameter of the inlet pipe
is positioned below the liquid surface with a
_____________________________.
6. Total liquid depth for larger poured-in-place 66 inches
tanks shall have a maximum of
______________inches
7. True or False: Walls and bottom of True
poured-in-place septic tanks must be rein-
forced.
8. How can a Septic tank be reinforced? six inch by 6 inch (6"x6") No.10 gage
welded steel reinforcing wire OR fi-
brous reinforcing material conforming
, Commercial Septic System Installer Exam
Study online at https://quizlet.com/_3gvla0
to ASTM specifications for such materi-
als.
9. How must Tank Lids be Reinforced? 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.
10. In general, the tank must be able to withstand 150
a uniform live load of ______________________
pounds per square foot in addition to all loads
to which an underground tank is normally sub-
jected.
11. True or False: Walls, bottoms, and lids of True
poured-in-place septic tanks should have a
minimum thickness of four inches (4").
12. Tank lids shall be constructed in one or two,
______________________ pieces and shall have readily accessed.
securable, removable access openings locat-
ed so that the inlet and outlet tees can be
________________________________.
13. Access opening shall have a minimum Minimum: 15"
of _________________ and maximum of Maximum: 24"
___________________ free space.
14. 12
