CT Septic License Exam Questions and answers with verified Answers (Latest Update 2026) UPDATE!!

CT Septic License Exam Questions and answers with
verified Answers (Latest Update 2026) UPDATE!!




What are the capacities for each side of a septic tank?

ANSWERS:
2/3 inlet side, 1/3 outlet side


What is the MLSS if the FF=2.50, PF=1.25, HF=54

ANSWERS:

168.75 LF

The measure of oxygen used by microorganisms to decompose
waste:

ANSWERS:

BOD

The chemical procedure for determining the amount of
dissolved oxygen needed by aerobic biological organisms:
ANSWERS:


COD

The lowest part of the internal cross-section of a lined channel or
pipe:


ANSWERS:
Invert (Flow line)

, What is an "Accessory Structure"?


ANSWERS:
A permanent non-habitable structure not served by a water
supply

what is the anticipated daily discharge from a building called?


ANSWERS:
Design flow

What is the MLSS formula"


ANSWERS:
MLSS=FF (Flow factor) x PF (Perc factor) x HF (Hydraulic factor)

What is the FF formula for up to 3 BR house?


ANSWERS:
(#BR x 150 GPD)/300 GPD = FF

What is the FF formula for more than 3 BR house?


ANSWERS:
((3 BR x 150 GPD) + ((total BR - 3)x75))/300 GPD = FF

What is the calculation for % slope?


ANSWERS:
Rise/Run x 100