SEPTIC EXAM QUESTIONS WITH DETAILED VERIFIED AND ANSWERS.pdf

SEPTIC EXAM QUESTIONS WITH DETAILED
VERIFIED AND 100% ACCURATE ANSWERS

SEPTIC EXAM PRACTICE QUESTIONS
Detailed Verified and 100% Accurate Answers


SECTION 1: SEPTIC TANK DESIGN AND CONSTRUCTION
Question 1
What is the minimum retention time required for a septic tank in Georgia?
A. 12 hours
B. 24 hours
C. 36 hours
D. 48 hours
Answer: B
Explanation: Georgia Rule 511-3-1-.05 specifies that septic tanks shall provide a
minimum of 24 hours of retention. This allows adequate settling of solids and
separation of scum .
Question 2
What material must the inlet and outlet tees in a septic tank be rated to?
A. ASTM C-33
B. ASTM 3034 or equivalent
C. ASTM D-698
D. AASHTO M-43
Answer: B
Explanation: Both the inlet and outlet tees shall be ASTM 3034 rated or
equivalent. This ensures proper durability and resistance to wastewater exposure .

,Question 3
What must be installed on the outlet end of a septic tank?
A. Sand filter
B. An approved filter
C. Carbon filter
D. UV filter
Answer: B
Explanation: An approved filter shall be installed on the outlet end of the septic
tank in compliance with the Manual for On-Site Sewage Management Systems.
This prevents solids from entering the absorption field .
Question 4
What is the minimum liquid capacity of a septic tank for a one to four-bedroom
single-family dwelling in Georgia?
A. 500 gallons
B. 750 gallons
C. 1,000 gallons
D. 1,500 gallons
Answer: C
Explanation: Georgia regulations specify that the liquid capacity of septic tanks for
single-family dwellings shall be one thousand gallons for one, two, three or four
bedrooms .
Question 5
How much additional capacity is required for each bedroom over four in a single-
family dwelling?
A. 100 gallons
B. 150 gallons
C. 250 gallons
D. 500 gallons

,Answer: C
Explanation: Georgia regulations require 250 additional gallons for each bedroom
over four. For example, a five-bedroom home requires 1,250 gallons .
Question 6
By what percentage must septic tank capacity be increased if a garbage grinder is
to be used?
A. 25%
B. 50%
C. 75%
D. 100%
Answer: B
Explanation: Septic tank capacity shall be increased by 50% if a garbage grinder is
to be used. This accounts for the additional organic loading from food waste .
Question 7
How many compartments must a septic tank have in Georgia?
A. One compartment
B. Two compartments
C. Three compartments
D. No compartments required
Answer: B
Explanation: Two-compartment tanks shall be required. The first compartment
shall be at least 2/3 the liquid capacity of the tank. This design allows for better
settling and prevents short-circuiting .
Question 8
What is the minimum capacity of the first compartment in a two-compartment
septic tank?
A. 1/2 of the total liquid capacity
B. 2/3 of the total liquid capacity

, C. 3/4 of the total liquid capacity
D. Equal to the second compartment
Answer: B
Explanation: The first compartment shall be at least 2/3 the liquid capacity of the
tank. This provides adequate settling time for solids before effluent moves to the
second compartment .
Question 9
When tanks are installed in series, what is the minimum required capacity of the
first tank?
A. 500 gallons
B. 750 gallons
C. 1,000 gallons
D. 1,500 gallons
Answer: C
Explanation: When tanks in series are approved, the first tank must be at least
1000 gallons and equal to 2/3 of the required liquid capacity. All sewage shall
initially enter the first tank .
Question 10
How must tanks in series be connected?
A. With an open trench
B. With a sealed sewer line
C. With a gravel bed
D. With a distribution box
Answer: B
Explanation: Tanks in series shall be connected with a sealed sewer line to
prevent leakage and ensure proper flow between tanks .
Question 11
What is the minimum earth cover recommended over a septic tank?