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Commercial contractor questions and correct answers (elaborations) with 100% accurate , verified , latest fully updated , 2024/2025 ,already passed , graded a+, complete solutions guarantee distinctions rationales| 5-star rating
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Commercial contractor questions and correct answers (elaborations) with 100% accurate , verified , latest fully updated , 2024/2025 ,already passed , graded a+, complete solutions guarantee distinctions rationales| 5-star rating

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  • August 5, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • commercial contractor study guide
  • commercial contractor questions and correct answe

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  • Commercial Construction
  • Commercial Construction

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Commercial Contractor
(3/8") steel reinforcing rods shall be placed - ANS-twelve (12") inches on center each way
extending a minimum of two and one-half (2 1/2") inches and a maximum of three (3") inches
from the outside edge of the tank lid.

A hole or vacuum breaking device is placed inside of the discharge pipe of the dosing tank to
prevent - ANS-siphoning the reaming contents of the tank after the pump shuts off

A hole or vacuum breaking device must be placed on the dosing tank - ANS-in the discharge
pipe before it exits the tank

Absorption field dosing is required when the total linear length exceeds _____ft. - ANS-500

Absorption field for residential type facilities shall be sized for - ANS-150 gallons per bedroom

Absorption fields are sized according to - ANS-anticipated peak daily sewage flow for facility to
be served

Absorption fields for commercial systems shall be designed - ANS-using Section J of the
Manual

Additional reinforcement for a septic tank will be needed when - ANS-the loads on the concrete
tank are exceeded by subjecting it to vehicular traffic, or

when the top of the tank is placed deeper than three (3) feet below the finished grade

All dosing tanks must have operating liquid capacity of ______% to _____% of the interior
volume of absorption lines to be dosed - ANS-60,75

All dosing tanks shall have - ANS-switches and alarms to notify the owner of malfunction

All solid pipe used in the installation of on-site sewage disposal systems shall be -
ANS-schedule 40 PVC or equivalent

All systems larger than _______ shall be designed by and bear the stamp of an ___________
registered in GA - ANS-2,000, engineer

All systems using 4-inch distribution pipe, dosing shall be based on - ANS-one-half gallon per
linear foot

, All tanks shall be constructed - ANS-so the length is at least one and one half (1 1/2) times the
width

All tanks shall be equipped with tees that are - ANS-four-inch (4") PVC, ASTM 3034 rated or
equivalent

All tanks shall have - ANS-two (2) compartments

All wiring and electrical components shall meet the standards for the - ANS-National Electrical
Code

Alternating absorption fields are required when total linear length exceeds ______ft. - ANS-1000

Alternating siphons are used for - ANS-systems with more than 1000 linear feet of field line

An ATU (Aerobic Treatment Unit) shall be used when a facility produces a waste stream with
both - ANS-BOD5 (biological oxygen demand) and TSS (total suspended solids) higher than
200 mg/L

Any contractor installing an ATU must be - ANS-authorized by the manufacturer,
must be able to show proof

Any on-site sewage system greater than ________ per day shall be referred to the
___________ - ANS-10,000, Georgia EPD

Any wastewater that contains chemicals that may be harmful to the environment shall be -
ANS-referred to the Georgia EPD Underground Injection Control Program

ATU's are used to reduce BOD5 and TSS to - ANS-200 mg/L or below before application to the
absorption field

ATU's must be reviewed by the - ANS-Environmental Protection Divison

Care should be taken to ensure concrete septic tanks are not - ANS-poured during freezing, or
otherwise inclement periods that could damage the integrity of the project

Cast iron - ANS-shall be considered to meet the equivalency standard

Chamber systems shall be dosed based on - ANS-1 gallon per linear foot

Check valve for a Dosing Tank - ANS-These are required when field lines are above the
elevation of the operation water level of the tank

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