Commercial Septic System Installer Exam with precise ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
detailed solutions ||\\//||
All tanks must have: - correct answer✔✔2 compartments
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All tanks whether pre-manufactured or constructed on site shall be constructed so that the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
length is ___________ compared to the width. - correct answer✔✔at least one and one-
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
half (1 1/2) times... "to the width."
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Septic Tanks may be made of: - correct answer✔✔Concrete, Plastic, fiberglass, or other
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
materials as approved by the department. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Tank compartment partitions will be located: - correct answer✔✔Not less than two-thirds
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
or more than three-fourths the Length of the tank from the Inlet end.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Compartment partitions will be constructed so a pass-thru hole or slot equal to or greater ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
than the diameter of the inlet pipe is positioned below the liquid surface with a
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
_____________________________. - correct answer✔✔Minimum 25% to a maximum of ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
50% of the total liquid depth.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Total liquid depth for larger poured-in-place tanks shall have a maximum of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
______________inches - correct answer✔✔66 inches ||\\//|| ||\\//|| ||\\//|| ||\\//||
True or False: Walls and bottom of poured-in-place septic tanks must be reinforced. -
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
correct answer✔✔True ||\\//||
, How can a Septic tank be reinforced? - 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? - 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. - 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"). - 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
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
________________________________. - correct answer✔✔one or two, ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
readily accessed. ||\\//||
Access opening shall have a minimum of _________________ and maximum of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
___________________ free space. - 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. - correct answer✔✔12 ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
detailed solutions ||\\//||
All tanks must have: - correct answer✔✔2 compartments
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
All tanks whether pre-manufactured or constructed on site shall be constructed so that the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
length is ___________ compared to the width. - correct answer✔✔at least one and one-
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
half (1 1/2) times... "to the width."
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Septic Tanks may be made of: - correct answer✔✔Concrete, Plastic, fiberglass, or other
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
materials as approved by the department. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Tank compartment partitions will be located: - correct answer✔✔Not less than two-thirds
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
or more than three-fourths the Length of the tank from the Inlet end.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Compartment partitions will be constructed so a pass-thru hole or slot equal to or greater ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
than the diameter of the inlet pipe is positioned below the liquid surface with a
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
_____________________________. - correct answer✔✔Minimum 25% to a maximum of ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
50% of the total liquid depth.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Total liquid depth for larger poured-in-place tanks shall have a maximum of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
______________inches - correct answer✔✔66 inches ||\\//|| ||\\//|| ||\\//|| ||\\//||
True or False: Walls and bottom of poured-in-place septic tanks must be reinforced. -
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
correct answer✔✔True ||\\//||
, How can a Septic tank be reinforced? - 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? - 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. - 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"). - 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
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
________________________________. - correct answer✔✔one or two, ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
readily accessed. ||\\//||
Access opening shall have a minimum of _________________ and maximum of
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
___________________ free space. - 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. - correct answer✔✔12 ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
