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OSSF DR Test Practice Questions And Answers With Complete Study Solutions
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OSSF DR Test Practice Questions And Answers With Complete Study Solutions _______ and ________ soil textural classes are always unsuitable for standard absorptive OSSF ANS class IA and IV List each of the major soil horizons ANS surface soil A, surface soil B, and parent material _________...

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  • September 24, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ossf dr test practice
  • ossf dr test practice questions and answers with c
  • ossf dr test practice questions
  • and soil textural classes are alw

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OSSF DR Test Practice Questions And Answers With
Complete Study Solutions
_______ and ________ soil textural classes are always unsuitable for standard absorptive OSSF ANS class IA
and IV



List each of the major soil horizons ANS surface soil A, surface soil B, and parent material



_____________ is a term describing the ability of water to migrate through a soil profile under either _________ or
__________ conditions. ANS Hydraulic conductivity, saturated, unsaturated



Interconnected pores in the soil profile allow ______ and _______ to enter the soil at its surface and migrate
downward ANS air, water



List the four components of soil ANS air, water, organics, inorganics



A drainfield is 50 feet by 90 feet and must be covered with an average of 15 inches of sand loam. How many cubic
yards of sandy loam soil must be purchased (find the volume of a rectangular object)? ANS 208.3 cubic yards



What would be the volume of a 5-foot-diameter pump tank that is 5 feet tall with the inlet 1 foot below the rim?
ANS 587 gals



What would be the percent slope on a lot 250 feet deep that drops 20 feet in elevation over the depth of the lot? ANS
8%



How many cubic yards of gravel would be needed to fill a ditch 3 feet deep, 10 feet wide, and 12 feet long with 18
inches of gravel? 1 cubic yard = 27 cubic feet. ANS 6.67 cubic yards



A septic tank is 6 feet in diameter and is 8 feet deep. How many gallons will it hold if the overflow line is located
half way up from the bottom? ANS 846 gals



Calculate the working liquid capacity (volume) for this septic tank. SEE PAGE 2-39!! ANS 1077gals

, What is the surface area (area in square feet) of an evapotranspiration system 40 feet wide and 65 feet long? ANS
2,600 sqft



Figure the acreage for a piece of property that measures 256 feet on each of four sides. ANS 1.5 acres



Figure the area of a lot that measures 60ft by 280ft ANS 16,800sqft ,0.39 acres



A disposal option that might be considered in a clay soil would be a ________. ANS drip or spray irrigation



The primary treatment device providing the least or poorest treatment of domestic wastewater would be _______.
ANS septic tank



Nitrogen or nitrate removal in soil occurs by _________. ANS vegetation uptake



The factors influencing the survival of bacteria in soil are _______. ANS moisture, temperature, pH, and organic
matter.



Physical removal of bacteria by straining occurs when _______. ANS the bacteria are larger than the pore
openings in the soil



A solid that can be filtered out of the wastewater is a _________. ANS suspended solid



Which of the following describes domestic wastewater as it leaves a home? ANS fresh, light in color, has
dissolved oxygen



Which of the following are problems caused by malfunctioning septic tank systems? ANS surface water
pollution, groundwater contamination, and standing sewage in neighborhoods



An inorganic chemical that affects human health is ANS nitrate



Parasites (helminths) found in untreated sewage include ________. ANS hookworm, round worms, and
tapeworms

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