OSTDS: Hydric Soil Indicators (Pt. 1 and 2) 2025/2026 EXAM QUESTIONS AND ANSWERS | 100% PASS

OSTDS: Hydric Soil Indicators (Pt. 1 and
2) 2025/2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS



Textures of LFS and coarser must have what? - 🧠ANSWER ✔✔SHWT

within 6 inches.


Textures of LVFS and finer must have what> - 🧠ANSWER ✔✔SHWT within

12 inches

Does hydric soil determinations have ramifications for DOH? - 🧠ANSWER

✔✔No


What are A indicators used for? - 🧠ANSWER ✔✔for all soils


What are S indicators used for? - 🧠ANSWER ✔✔for sandy soils only (LFS

and coarser)


What are F indicators used for? - 🧠ANSWER ✔✔for fine textured soils only

(LVFS and finer)




COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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, When determining if a color is dark enough to meet standards... -

🧠ANSWER ✔✔do not touch the sample surface


What indicators use depleted matrix? - 🧠ANSWER ✔✔A11, A12, F3, F12


What indicators use gleyed matrix? - 🧠ANSWER ✔✔A11, A12, S4, F2


What indicators use reduced matrix? - 🧠ANSWER ✔✔A11, A12, S4, F2,

F3, F12


What indicators use 70% masked by organic matter? - 🧠ANSWER ✔✔A5,

A11, A12, S7, S8, S9


Near-saturated - 🧠ANSWER ✔✔water can be squeezed from the sample.


Water from peat will be... - 🧠ANSWER ✔✔almost colorless


Water from mucky peat will be... - 🧠ANSWER ✔✔reddish in color


Water from muck will be... - 🧠ANSWER ✔✔black


Redox Concentration Requirements for Mn - 🧠ANSWER ✔✔Value/Chroma:

≤2

Hue: 2.5YR to 5Y




COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2