COMMERCIAL SEPTIC SYSTEM INSTALLER EXAM
QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS
All tanks must have: Correct Answers 2 compartments
All tanks whether pre-manufactured or constructed on site shall be
constructed so that the length is ___________ compared to the width.
Correct Answers at least one and one- half (1 1/2) times... "to the
width."
Septic Tanks may be made of: Correct Answers Concrete, Plastic,
fiberglass, or other materials as approved by the department.
Tank compartment partitions will be located: Correct Answers 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
Answers 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 Answers 66 inches
True or False: Walls and bottom of poured-in-place septic tanks must be
reinforced. Correct Answers True
, How can a Septic tank be reinforced? Correct Answers 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 Answers 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
Answers 150
True or False: Walls, bottoms, and lids of poured-in-place septic tanks
should have a minimum thickness of four inches (4"). Correct Answers
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
Answers one or two,
readily accessed.
QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS
All tanks must have: Correct Answers 2 compartments
All tanks whether pre-manufactured or constructed on site shall be
constructed so that the length is ___________ compared to the width.
Correct Answers at least one and one- half (1 1/2) times... "to the
width."
Septic Tanks may be made of: Correct Answers Concrete, Plastic,
fiberglass, or other materials as approved by the department.
Tank compartment partitions will be located: Correct Answers 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
Answers 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 Answers 66 inches
True or False: Walls and bottom of poured-in-place septic tanks must be
reinforced. Correct Answers True
, How can a Septic tank be reinforced? Correct Answers 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 Answers 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
Answers 150
True or False: Walls, bottoms, and lids of poured-in-place septic tanks
should have a minimum thickness of four inches (4"). Correct Answers
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
Answers one or two,
readily accessed.
