OSSF DR TEST PRACTICE EXAM QUESTIONS AND ANSWERS 2025/2026

OSSF DR TEST PRACTICE EXAM QUESTIONS AND ANSWERS 2025/2026 _______ and ________ soil textural classes are always unsuitable for standard absorptive OSSF - Correct Answer class IA and IV List each of the major soil horizons - Correct Answer 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. - Correct Answer Hydraulic conductivity, saturated, unsaturated Interconnected pores in the soil profile allow ______ and _______ to enter the soil at its surface and migrate downward - Correct Answer air, water List the four components of soil - Correct Answer 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)? - Correct Answer 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? - Correct Answer 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? - Correct Answer 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. - Correct Answer 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 overf