Exam (elaborations)
Review Quiz for Exam-2 (1
- Course
- Institution
Review Quiz for Exam-2 (1
[Show more]
Seller
Follow
modockochieng06
Content preview
Review Quiz for Exam#2Following is NOT one of the differences between standard and modified Proctor test? (circle
one)
A. Modified test uses heavier rammer as compared to standard Proctor test
B. Modified test uses higher drop height as compared to standard Proctor test
C. Modified test uses more number of layers as compared to standard Proctor test
D. Modified test uses more number of blows as compared to standard Proctor test - ANS-D.
Modified test uses more number of blows as compared to standard Proctor test
Which field compaction method is best for clayey soils? (circle one)
A. Smooth wheeled roller
B. Sheepsfoot roller
C. Vibratory roller
D. None of the above - ANS-B. Sheepsfoot roller
A sheepsfoot roller compact soil by providing: (circle one)
A. Pressure and impact
B. Impact and kneading
C. Pressure and kneading
D. Pressure and vibration - ANS-C. Pressure and kneading
Capillary rise of water is the result of surface tension on the water and air interface. (circle one)
True
False - ANS-True
Consolidation is a quick process of rearrangement of soil particles to reduce air voids in the soil.
(circle one)
True
False - ANS-False
Which of the following four types of soils is the most frost susceptible soil as a foundation
material? (circle one)
A. clay
B. gravel
C. sand
D. silt - ANS-D. silt
Water in soils will influence compaction effectiveness with lubrication between soil particles, so
when you are supervising a soil compaction process, you should instruct the construction
workers to make the water content as high as possible.
True
, False - ANS-False
Compaction can increase soil's density by reducing the soil's solid weight through mechanical
densification.
True
False - ANS-False
After compaction, the wet (or total) density of a compacted highway base is 120 pcf, and its dry
density is 110 pcf. The soil report shows that the soil in the highway base has a maximum dry
density of 125 pcf. What is the % compaction achieved?
A.96%
B.88%
C.104% - ANS-B.88%
Which method is suitable for repair of structures with settlements?
A. Vibroflotation
B. Chemical stabilization
C. Grouting
D. Stone columns - ANS-C. Grouting
You are working on a road project and the schedule indicates that aggregate subbase is to be
installed in two weeks. You have also noticed that the subgrade soil conditions are such that
loaded triaxle trucks are leaving ruts in the silty soil. After reviewing your contract, you have
noticed that your company must provide a warranty for the pavement for 6 years. If these facts
were of concern, what soil improvement method would you recommend to your supervisor?
A. Vibroflotation
B. Chemical stabilization
C. Grouting
D. Stone columns - ANS-B. Chemical stabilization
Geotextiles can be used for: (circle one)
A. Separation
B. Filtration
C. Reinforcement
D. All of the above - ANS-D. All of the above
Which method of soil improvement is NOT suitable for cohesive soils?
A. Dynamic compaction
B. Preloading
C. Vibroflotation
D. Stone columns - ANS-C. Vibroflotation
A cofferdam (a temporary dam for construction purposes) is built across the mouth of a small
bay. It is 135 ft. in length and is underlain by a permeable sand layer as shown. Water seeps
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 modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now