Commercial Septic System Installer Exam
(Environmental Health I exam for septic
Installers using Latest revision) Actual
Quizzes & Answers 2026
Description
This Commercial Septic System Installer Exam tests knowledge on On-Site
Sewage Facility construction, regulations, septic tank specs (materials,
dimensions, reinforcement), drain field design (soil types, gravity flow), safety,
and homeowner education, with Quizlet flashcards available for practice
covering tank details (length/width, partitions, lids) and regulatory aspects like
installer licensing by the TCEQ. Expect questions on soil properties (clay vs.
sand), system components (tanks, pipes, drain fields), installation
requirements (depth, slopes, risers), and the purpose of OSSF
maintenance. (Ultimate Guide for YR. 2026/2027)
Quiz_________________?
All tanks must have: -
Answer
2 compartments
Quiz_________________?
1
, All tanks whether pre-manufactured or constructed on site shall be
constructed so that the length is ___________ compared to the
width. -
Answer
at least one and one- half (1 1/2) times... "to the width."
Quiz_________________?
Septic Tanks may be made of: -
Answer
Concrete, Plastic, fiberglass, or other materials as approved by the
department.
Quiz_________________?
Tank compartment partitions will be located: -
Answer
Not less than two-thirds or more than three-fourths the Length of the
tank from the Inlet end.
Quiz_________________?
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
2
, below the liquid surface with a _____________________________.
-
Answer
Minimum 25% to a maximum of 50% of the total liquid depth.
Quiz_________________?
Total liquid depth for larger poured-in-place tanks shall have a
maximum of ______________inches -
Answer
66 inches
Quiz_________________?
True or False: Walls and bottom of poured-in-place septic tanks must
be reinforced. -
Answer
True
Quiz_________________?
How can a Septic tank be reinforced? -
Answer
3
(Environmental Health I exam for septic
Installers using Latest revision) Actual
Quizzes & Answers 2026
Description
This Commercial Septic System Installer Exam tests knowledge on On-Site
Sewage Facility construction, regulations, septic tank specs (materials,
dimensions, reinforcement), drain field design (soil types, gravity flow), safety,
and homeowner education, with Quizlet flashcards available for practice
covering tank details (length/width, partitions, lids) and regulatory aspects like
installer licensing by the TCEQ. Expect questions on soil properties (clay vs.
sand), system components (tanks, pipes, drain fields), installation
requirements (depth, slopes, risers), and the purpose of OSSF
maintenance. (Ultimate Guide for YR. 2026/2027)
Quiz_________________?
All tanks must have: -
Answer
2 compartments
Quiz_________________?
1
, All tanks whether pre-manufactured or constructed on site shall be
constructed so that the length is ___________ compared to the
width. -
Answer
at least one and one- half (1 1/2) times... "to the width."
Quiz_________________?
Septic Tanks may be made of: -
Answer
Concrete, Plastic, fiberglass, or other materials as approved by the
department.
Quiz_________________?
Tank compartment partitions will be located: -
Answer
Not less than two-thirds or more than three-fourths the Length of the
tank from the Inlet end.
Quiz_________________?
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
2
, below the liquid surface with a _____________________________.
-
Answer
Minimum 25% to a maximum of 50% of the total liquid depth.
Quiz_________________?
Total liquid depth for larger poured-in-place tanks shall have a
maximum of ______________inches -
Answer
66 inches
Quiz_________________?
True or False: Walls and bottom of poured-in-place septic tanks must
be reinforced. -
Answer
True
Quiz_________________?
How can a Septic tank be reinforced? -
Answer
3
