Exam (elaborations)
SWS3022 Exam 1 Study Guide | Questions And Answers Latest {} A+ Graded | 100% Verified
- Course
- Institution
SWS3022 Exam 1 Study Guide | Questions And Answers Latest {} A+ Graded | 100% Verified
[Show more]
Content preview
SWS3022 Exam 1 Study Guide | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
Which horizon closely resembles the parent material? - Horizon C
Which horizon is the zone of eluviation? - Horizon E
Which horizon is the uppermost mineral horizon? - Horizon A
Which horizon has greater than 20% O.M., dark in color? - Horizon O
Which horizon is the zone of illuviation? - Horizon B
Refers to the measure of the degree of lightness or darkness, to total amount of light reflected. - VALUE
Refers to the measure of the strength or intensity of the spectral color. - CHROMA
Refers to the dominant spectral color. - HUE
Soil A contains 40% sand, 40% silt, and 20% clay
Soil B contains 55% sand, 5% silt, and 40% clay
Which soil has the greater specific surface area? - Soil B
A 40 gram soil sample is placed in a 1-Liter sedimentation cylinder. After shaking the cylinder to suspend
the particles, a hydrometer reading is taken after 2 minutes. The hydrometer reading is 30 g/L. The soil
is allowed to settle for 6 hours. The hydrometer reading at that time is 8 g/L.
What is the % clay content of the sample? - 20% Clay
8 g/L / 40 g/L = 0.2
A soil horizon has a color of 10 YR 8/1 and is very sandy. This is most likely _____ horizon. - Horizon E
, A subsurface soil horizon has a color of 5 YR 6/8 and has a texture of sandy clay loam. This is most likely
_____ horizon. - Horizon B
You have a 100 cm^3 sample of soil A. The sample is oven dried and weighed. The weight is 160 grams.
What is the bulk density of soil A? - 1.6 g/cm^3
160/100 = 1.6
You have a 100 cm^3 sample of soil A. The sample is over dried and weighed. The weight is 160 grams.
What is the porosity of soil A? - 40%
1-(1.6/2.65) * 100 = 40%
You have a 100 cm^3 sample of soil B. The sample is oven dried and weighed. The weight is 120 grams.
What is the bulk density of soil B? - 1.2 g/cm^3
120/100 = 1.2
You have a 100 cm^3 sample of soil B. The sample is oven dried and weighed. The weight is 120 grams.
What is the porosity of soil B? - 55%
1-(1.2/2.65) * 100 = 55%
You obtain a soil sample with a volume of 400 cm^3. It has a moist weight of 450 grams and an oven-dry
weight of 400 grams. What is the gravimetric water content? - 12.5%
(450-400)/400 = 12.5%
You obtain a soil sample with a volume of 400 cm^3. It has a moist weight of 450 grams and and oven-
dry weight of 350 grams. What is the volumetric water content? - 25%
(450-350)/400 = 25%
You obtain a soil sample with a volume of 400 cm^3. It has a moist weight of 450 grams and an oven-dry
weight of 350 grams. What is the gravimetric water content? - 28.6%
(450-350)/350 = 28.6%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller oneclass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75860 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now