During a sieve analysis procedure, you ___ turn or manipulate fragments in the sample
through the sieve by hand. - answercannot
When performing a hydrometer test, water shall be maintained at or near ___. -
answer68°F
The soak time for the sample in solution during a Particle-Size Analysis shall be at least
___. - answer16 hours
Hydrometer readings shall be taken from the ___. - answerTop of the meniscus
Two methods are used to prepare a test for liquid limit (LL), plastic limit (PL), and
plasticity index (PI): - answerwet, dry
For the LL, PL and PI, the method of preparation shall be specified by the requesting
authority and if no method is specified, us the ___ method. - answerWet
Two methods are used for determining ___: Method A (multipoint) or Method B (one-
point). - answerLiquid Limit (LL)
The method of preparation for the LL shall be specified by the requesting authority and
if no method is specified, there is a dispute, or greater precision is required, use Method
____. - answerA
The LL, PL, and PI are performed on the portion of the soil that passes the ____ sieve. -
answerNo. 40
The water content, in percent, of the soil at the arbitrarily defined boundary between
liquid and plastic states is known as the ___. - answerLiquid Limit (LL)
The water content, in percent, of a soil at the boundary between the plastic and semi-
solid states is known as the ___. - answerPlastic Limit (PL)
The ___ is calculated as the difference between the liquid limit and the plastic limit. The
equation is as follows:
___ = __ - ___. - answerPlasticity index;
PI = LL - PL
Originally there were six "limits of consistency" of fine-grained soils. Now LL, PL, and in
some references, the shrinkage limit is known as the ____. - answerAtterberg limits
, The Plastic Limit "hand method" requires placing a mass of soil on a glass plate, then -
with your fingers - roll it into a ___ in diameter. - answer1/8 inch
When sampling from a roadway, obtain at least ___ equal increments selected
randomly from the unit being sampled. - answer3
If sampling from a stockpile of fine aggregate, always remove the ___ and sample the
material beneath. - answerOuter layer
The Standard Effort lab max applies to soils that have 30% or less by weight retained
on the ___. - answer3/4-inch sieve
When performing a proctor test for Procedures/Methods A & B, both require 5 layers
with ____ per layer. - answer25 blows
Procedure/Method C of the proctor test (ASTM D698 or D1557) requires 5 layers with
___ per layer. - answer56 blows
The Standard Effort (ASTM D698) uses a ____ lbf rammer dropped from a height of
___ inches producing a compactive effort of ___ ft-lbf/ft3. - answer5.5;
12;
12,400
For ASTM D698, Procedure A uses a ___ sieve, Procedure B uses a ___ sieve, and
Procedure C uses a ___ sieve. - answerNo. 4;
3/8-inch;
3/4-inch
For ASTM D698 or D1557, the required sample mass for Procedures/Methods A and B
is approximately ___ and for Procedure/Method C is approximately ___ of *dry* soil. -
answer35 lbs;
65 lbs
The *field* sample for ASTM D69 or D1557 both should have a *moist* mass of ___ for
Procedure/Method A & B, and ___ for Procedure/Method C. - answer50 lbs;
100 lbs
The portion of the total sample used in performing the compaction proctor test is
referred to as the ___. - answertest fraction (finer fraction).
The Modified Effort (ASTM D1557) uses a ___ lbf rammer dropped from a ____ inches,
producing a compactive effort of ___ ft-lbf/ft3. - answer10;
18;
56,000
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