OSSF DR TEST PRACTICE EXAM QUESTIONS AND CORRECT ANSWERS| ACCURATE REAL EXAM WITH FREQUENTLY TESTED QUESTIONS AND RATIONALE|ALREADY A GRADED|GUARANTEED PASS|LATEST UPDATE 2025.

OSSF DR TEST PRACTICE EXAM
QUESTIONS AND CORRECT
ANSWERS| ACCURATE REAL
EXAM WITH FREQUENTLY
TESTED QUESTIONS AND
RATIONALE|ALREADY A
GRADED|GUARANTEED
PASS|LATEST UPDATE 2025.

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Terms in this set (150)


_______ and ________ class IA and IV
soil textural
classes are
always
unsuitable for
standard
absorptive
OSSF

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

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

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

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

, A drainfield is 208.3 cubic yards
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)?

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