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COMMERCIAL SEPTIC SYSTEM INSTALLER EXAM, Exams of Nursing

COMMERCIAL SEPTIC SYSTEM INSTALLER EXAM All tanks must have: - CORRECT ANSWER -2 compartments All tanks whether pre-manufactured or constructed on site shall be constructed so that the length is ___________ compared to the width. - CORRECT ANSWER -at least one and one- half (1 1/2) times... "to the width." Septic Tanks may be made of: - CORRECT ANSWER -Concrete, Plastic, fiberglass, or other materials as approved by the department. Tank compartment partitions will be located: - CORRECT ANSWER -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 ANSWER -Minimum 25% to a maximum of 50% of the total liquid depth. Total liquid depth for larger poured-in-place tanks shall have

Typology: Exams

2024/2025

Available from 07/14/2025

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COMMERCIAL SEPTIC
SYSTEM INSTALLER EXAM
All tanks must have: - CORRECT ANSWER -2 compartments
All tanks whether pre-manufactured or constructed on site shall be constructed so that the
length is ___________ compared to the width. - CORRECT ANSWER -at least one and one-
half (1 1/2) times... "to the width."
Septic Tanks may be made of: - CORRECT ANSWER -Concrete, Plastic, fiberglass, or other
materials as approved by the department.
Tank compartment partitions will be located: - CORRECT ANSWER -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 ANSWER -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 ANSWER -66 inches
True or False: Walls and bottom of poured-in-place septic tanks must be reinforced. -
CORRECT ANSWER -True
How can a Septic tank be reinforced? - CORRECT ANSWER -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.
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COMMERCIAL SEPTIC

SYSTEM INSTALLER EXAM

All tanks must have: - CORRECT ANSWER - 2 compartments All tanks whether pre-manufactured or constructed on site shall be constructed so that the length is ___________ compared to the width. - CORRECT ANSWER - at least one and one- half (1 1/2) times... "to the width." Septic Tanks may be made of: - CORRECT ANSWER - Concrete, Plastic, fiberglass, or other materials as approved by the department. Tank compartment partitions will be located: - CORRECT ANSWER - 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 ANSWER - 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 ANSWER - 66 inches True or False: Walls and bottom of poured-in-place septic tanks must be reinforced. - CORRECT ANSWER - True How can a Septic tank be reinforced? - CORRECT ANSWER - six inch by 6 inch (6"x6") No. gage welded steel reinforcing wire OR fibrous reinforcing material conforming to ASTM specifications for such materials.

How must Tank Lids be Reinforced? - CORRECT ANSWER - 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 ANSWER - 150 True or False: Walls, bottoms, and lids of poured-in-place septic tanks should have a minimum thickness of four inches (4"). - CORRECT ANSWER - 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 ANSWER - one or two, readily accessed. Access opening shall have a minimum of _________________ and maximum of ___________________ free space. - CORRECT ANSWER - Minimum: 15" Maximum: 24" Tanks with more than 12 inches of cover must extend access openings to within ______ inches of the ground surface. - CORRECT ANSWER - 12 All tanks shall be equipped with ________________________________ rated or equivalent tees at the inlet and outlet ends of the tank. - CORRECT ANSWER - Four inch (4") PVC, ASTM 3034 Tees shall be constructed so they extend into the liquid a minimum of ____________________ and a maximum of __________________ of the liquid depth of the tank. - CORRECT ANSWER - Min: 25% Max: 50%

Systems requiring one thousand linear feet (1000') or more will need ________________________________. - CORRECT ANSWER - alternating pumps or siphons. True or False: Dosing tanks shall meet the construction requirements for septic tanks with regard to construction materials and reinforcement. - CORRECT ANSWER - True True or False: For dosing tanks One or two piece tanks may be used. - CORRECT ANSWER - True When two piece Dosing tanks are used sections must be _______________by using mastic, butyl rubber, or other pliable sealant that is water proof, corrosion resistant and approved for use in septic tanks. - CORRECT ANSWER - Joined For Dosing tanks, there shall be no requirement as to _____________,_____________,or ___________ of tank. - CORRECT ANSWER - length, width, of shape Tanks may have a single compartment or if a partition is used it must have _______________________________________ located no more than ________inches above the tank bottom. - CORRECT ANSWER - 2 four inch diameter holes or equivalent, 12 inches Dosing tanks using PUMPS must have a reserve capacity of _______________ flow. - CORRECT ANSWER - One days True or False: Dosing tanks for SIPHONS will not be required to have one days flow reserved.

  • CORRECT ANSWER - True True or False: All tanks must have an operating liquid capacity of 60%-70% the interior volume of the absorption lines to be dosed. - CORRECT ANSWER - True

All dosing tanks shall have switches and alarms that notify the owner of _____________________. - CORRECT ANSWER - malfunction. When determining dosing tank requirements _____________, _________________, _________________, and ____________________ should be taken into consideration. - CORRECT ANSWER - volume, flow rates, waste water characteristics, and other similar information True or False: Large capacity dosing tanks will need to be constructed on site. - CORRECT ANSWER - True Dosing tanks shall have a water-tight access cover at least ____________ inches in diameter extending to the ground or no more than ______________ inches below the ground surface.

  • CORRECT ANSWER - 24 inches, 12 inches When pumps are used to does field lines, consideration must be given to the _____________________, ________________________, and ________________________________________________. - CORRECT ANSWER - wastewater characteristics, desired discharge rate, and total dynamic head require for the system. The total dynamic head is calculated by - CORRECT ANSWER - adding the elevation difference between the discharge outlet and the lowest water level in the dosing tank to the friction losses incurred in the discharge pipe. The velocity head can be neglected in most applications. For a pump to be Satisfactory in a system It must... - CORRECT ANSWER - be able to overcome the amount of head or more at an acceptable discharge rate. When field lines are above the elevation of the operating water level of the tank, a _______________________ should be used to prevent the contents of discharge pipes from emptying back into the tank. - CORRECT ANSWER - check valve

True or False: Effluent from the grease trap is deposited in the septic tank along with the other water carried waste from the facility. - CORRECT ANSWER - True In Georgia the minimum sized grease trap allowable is __________________ gallons. - CORRECT ANSWER - 125 gallons. The sizing of grease traps should take into consideration the ___________________ and the ___________________________________. - CORRECT ANSWER - type of facility served and the estimated daily sewage flow. Grease traps may be constructed of ___________materials used for conventional septic tanks. - CORRECT ANSWER - any It is recommended that grease traps be cleaned when ___________ percent of their grease retention capacity is reached. - CORRECT ANSWER - 75% Commercial on-site sewage disposal systems shall adhere to all the standards established for residential systems unless __________________________________. - CORRECT ANSWER - specifically addressed in the permit. Commercial systems shall be sized according to the ______________________________________ for the facility to be served. - CORRECT ANSWER - anticipated daily sewage flow For residential type facilities both single and multifamily, _________________ per bedroom will be used to estimate the number of gallons per day sewage flow. - CORRECT ANSWER - 150 gallons per bedroom Where garbage grinders are used increase tank capacity by __________________% - CORRECT ANSWER - 50%

All solid pipe used in the installation of on-site sewage disposal systems shall be schedule _________________ or equivalent. (cast Iron shall be considered to meet the equivalency standard.) - CORRECT ANSWER - 40 PVC All wiring and electrical components for systems requiring electrical components should for systems requiring electrical components should meet the standards set forth in the ____________________________________. - CORRECT ANSWER - National Electrical Code Trenches that exceed sixty inches in depth should have ___________ stabilized with appropriate shoring devices. - CORRECT ANSWER - Walls