DHEC 61-56 SC Prac ce Test/ DHEC For SC 61-56 License
Updated RATED NEW 2025/2026
Septage
Includes the liquid, solid, and semi-solid materials which se le to the bo om of transport
containers
3 mul ple choice op ons
Minimum requirements for on-site wastewater system final treatment and disposal system shall
be at least _____feet of undisturbed earth between wastewater infiltra on trenches.
7'
3 mul ple choice op ons
AD
Permit is good for how long?
5 years
3 mul ple choice op ons
Define what Saprolite are?
So' friable thru decomposed rock that formed by chemical weathering and devoid of expansive
clay.
3 mul ple choice op ons
What is a receptor?
any water, or surface of water of state including estuaries.
3 mul ple choice op ons
There shall be at least ___ feet of earth buffer between the sep c tank and all por ons of
adjacent wastewater infiltra on trenches.
2 Feet
3 mul ple choice op ons
In conven onal wastewater system aggregate shall be cover with at least____ Inches of soil?
9"
, 3 mul ple choice op ons
Conven onal Wastewater infiltra on trenches shall be_____ feet in width?
3'
3 mul ple choice op ons
Conven onal wastewater infiltra on trench aggregate shall be______ inches in depth and
placed so as to provide _____ inches of aggregate below the pipe, _____ inches beside the pipe
and ____ inches above the pipe.
14" 7" 4" 3"
3 mul ple choice op ons
Where gravity flow is u lized the invert eleva on of the sep c tank outlet shall be?
the same eleva on or higher than the top of the aggregate in the highest wastewater infiltra on
trench
3 mul ple choice op ons
The aggregate used in on site wastewater system shall be a material approved by the
department and shall range in size.
1/2" to 2 1/2"
3 mul ple choice op ons
All pipe used on wastewater system shall meet applicable ASTM standards and shall be a
minimum of _____ inches.
3"
3 mul ple choice op ons
AD
The bo om of each wastewater infiltra on trench, including the distribu on pipe contained
within shall be?
As level as possible, with an eleva on differen al not to exceed 2" throughout the trench run.
3 mul ple choice op ons
What is flexural strength?
A measure of the ability of a material to withstand rupture when subject to bend loading.
Updated RATED NEW 2025/2026
Septage
Includes the liquid, solid, and semi-solid materials which se le to the bo om of transport
containers
3 mul ple choice op ons
Minimum requirements for on-site wastewater system final treatment and disposal system shall
be at least _____feet of undisturbed earth between wastewater infiltra on trenches.
7'
3 mul ple choice op ons
AD
Permit is good for how long?
5 years
3 mul ple choice op ons
Define what Saprolite are?
So' friable thru decomposed rock that formed by chemical weathering and devoid of expansive
clay.
3 mul ple choice op ons
What is a receptor?
any water, or surface of water of state including estuaries.
3 mul ple choice op ons
There shall be at least ___ feet of earth buffer between the sep c tank and all por ons of
adjacent wastewater infiltra on trenches.
2 Feet
3 mul ple choice op ons
In conven onal wastewater system aggregate shall be cover with at least____ Inches of soil?
9"
, 3 mul ple choice op ons
Conven onal Wastewater infiltra on trenches shall be_____ feet in width?
3'
3 mul ple choice op ons
Conven onal wastewater infiltra on trench aggregate shall be______ inches in depth and
placed so as to provide _____ inches of aggregate below the pipe, _____ inches beside the pipe
and ____ inches above the pipe.
14" 7" 4" 3"
3 mul ple choice op ons
Where gravity flow is u lized the invert eleva on of the sep c tank outlet shall be?
the same eleva on or higher than the top of the aggregate in the highest wastewater infiltra on
trench
3 mul ple choice op ons
The aggregate used in on site wastewater system shall be a material approved by the
department and shall range in size.
1/2" to 2 1/2"
3 mul ple choice op ons
All pipe used on wastewater system shall meet applicable ASTM standards and shall be a
minimum of _____ inches.
3"
3 mul ple choice op ons
AD
The bo om of each wastewater infiltra on trench, including the distribu on pipe contained
within shall be?
As level as possible, with an eleva on differen al not to exceed 2" throughout the trench run.
3 mul ple choice op ons
What is flexural strength?
A measure of the ability of a material to withstand rupture when subject to bend loading.
