OSSF DR TEST PRACTICE (Latest Update
) Questions with Correct
Answers {Grade A} 100% Verified
_______ adopted the current OSSF Rules in 1997 and revised them several times -
correct answer TCEQ
Class II soils include the USDA classes of _________ and __________. - correct answer
sandy loam, loam
The _________ is a tool to graphically delineate soil textural classes. - correct answer
USDA soil textural triangle
List the two unsuitable types of soil structure or structural condition. - correct answer
Platy (like a stack of plates)
Massive ( can't break it up, huge pieces)
A soil color pattern of orange and brown on a background of gray or bluish color is
called - correct answer mottling
,The ideal soil environment for organic effluent decomposition is one of good ______ and
________. - correct answer soil air, soil water balance
Soil associations are _______ units which encompass broad areas with similar patterns
of __________, __________, __________, and _________. - correct answer soil. soil profiles,
vegetation, relief, and drainage
The county ____________________ is an essential tool for conducting a site evaluation but
does not take the place of the on-site field soil evaluation. - correct answer soil survey
Sites with greater than ____ percent slope are unsuitable. - correct answer 30
A minimum lot size of _______ acre is required for subdivisions serviced by _________
water. The minimum size is ______ acre for those serviced by ___________. - correct
answer 0.5, public, 1, private well
, Soil evaluation pits shall be excavated to a depth of _____ inches below the proposed
_________ or to a _________ horizon, whichever is shallower. - correct answer 24,
drainfield, restrictive
Any soil profile with an indication of high-water table within _____ inches below the
proposed drainfield shall be considered _____________ for a standard drainfield. -
correct answer 24, unsuitable
The ___________ and ____________ of each soil horizon should be measured from ________
to _________ and recorded in the soil evaluation report. - correct answer sequence,
depth, top, bottom
The depth of soil classified as suitable with respect to texture shall be at least ____
inches below the bottom of the proposed excavation for a standard drainfield. - correct
answer 24
If a soil with no gravel will not form a ribbon in the texture-by-feel method, it is
classified as ______ or ______, class ____. - correct answer sand or loamy sand, Ib
) Questions with Correct
Answers {Grade A} 100% Verified
_______ adopted the current OSSF Rules in 1997 and revised them several times -
correct answer TCEQ
Class II soils include the USDA classes of _________ and __________. - correct answer
sandy loam, loam
The _________ is a tool to graphically delineate soil textural classes. - correct answer
USDA soil textural triangle
List the two unsuitable types of soil structure or structural condition. - correct answer
Platy (like a stack of plates)
Massive ( can't break it up, huge pieces)
A soil color pattern of orange and brown on a background of gray or bluish color is
called - correct answer mottling
,The ideal soil environment for organic effluent decomposition is one of good ______ and
________. - correct answer soil air, soil water balance
Soil associations are _______ units which encompass broad areas with similar patterns
of __________, __________, __________, and _________. - correct answer soil. soil profiles,
vegetation, relief, and drainage
The county ____________________ is an essential tool for conducting a site evaluation but
does not take the place of the on-site field soil evaluation. - correct answer soil survey
Sites with greater than ____ percent slope are unsuitable. - correct answer 30
A minimum lot size of _______ acre is required for subdivisions serviced by _________
water. The minimum size is ______ acre for those serviced by ___________. - correct
answer 0.5, public, 1, private well
, Soil evaluation pits shall be excavated to a depth of _____ inches below the proposed
_________ or to a _________ horizon, whichever is shallower. - correct answer 24,
drainfield, restrictive
Any soil profile with an indication of high-water table within _____ inches below the
proposed drainfield shall be considered _____________ for a standard drainfield. -
correct answer 24, unsuitable
The ___________ and ____________ of each soil horizon should be measured from ________
to _________ and recorded in the soil evaluation report. - correct answer sequence,
depth, top, bottom
The depth of soil classified as suitable with respect to texture shall be at least ____
inches below the bottom of the proposed excavation for a standard drainfield. - correct
answer 24
If a soil with no gravel will not form a ribbon in the texture-by-feel method, it is
classified as ______ or ______, class ____. - correct answer sand or loamy sand, Ib
