Soil Mechanics ch.3

Soil Mechanics ch.3

Professional Development

8 Qs

quiz-placeholder

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Soil Mechanics ch.3

Soil Mechanics ch.3

Assessment

Quiz

Geography

Professional Development

Easy

Created by

Rob Marq

Used 13+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of Proctor uses a 10-lb hammer and an 18-in. drop?

The original Proctor proposed by R.R. Proctor

.The modified Proctor (ASTM D1557)

The standard Proctor (ASTM D698)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ASTM D1557 method A, what size screen is the material sieved through?

#200

#40

.#4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Optimum moisture is the point that:

A sandy soil should be screened across the #4 sieve

A fine-grained soil becomes liquid

.Soil will compact best in both the field and laboratory

No more water can be retained in a soil

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A 40% solution of sodium hexametaphosphate is used to:

Remove dry soil from dirty sieves

Break down adhesion of noncohesive soils

.Soften and break down the adhesion of cohesive soils

None of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The hydrometer analysis is used to determine the particle-size distribution of:

Sand, clay, and silt

Sand and colloids

.Material finer than the #20 sieve

None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hydrometer readings should always be taken at the top of the meniscus.

.True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sample that cannot be rolled smaller than 1/8 in. without crumbling is to be considered:

CL/ML (per the liquid limit and plasticity graph)

Medium plastic

.Nonplastic

To have a high liquid limit

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

PI = LL – PL.

.True

False