11-33.
The mold and sample must be soaked
in water for what minimum number
of days?
1.
5
2.
2
3.
3
4.
4
11-34.
After you remove the sample from
the water, how long should it
drain before the penetration test
is performed?
1.
15 minutes
2.
2 hours
3.
8 hours
4.
24 hours
11-35.
When performing the penetration
test, how do you obtain the total
load?
1.
Multiply the dial reading by
the proving-ring constant
2.
Divide the unit load by three
3.
Multiply the corrected dial
reading by the proving-ring
constant
4.
Multiply the penetration by
the standard load
11-36.
When determining the CBR values,
what penetration value should you
normally use?
1.
0.1 inch
2.
0.2 inch
3.
0.3 inch
4.
0.4 inch
11-37.
When is soil considered
susceptible to frost?
1.
When the OMC is greater
than 4%
2.
When the soil contains
3% or more by weight of
particles smaller than
0.020 mm in diameter
3.
When the soil contains
3% or more by weight of
particles passing a
No. 200 sieve
4.
When the OMC is between
8% and 12%
11-38.
What publication(s) should you
refer to for the proper procedures
of hydrometer analysis?
1.
ASTM D 422
2.
NAVFAC MO-330
3.
Both 1 and 2 above
4.
NAVEDTRA 12540
11-39.
Samples for the hydrometer
analysis must pass through
1.
a No. 10 sieve
2.
a No. 50 sieve
3.
a No. 100 sieve
4.
a No. 200 sieve
11-40.
After you make the soil-water
slurry, how long should the
sample soak?
1.
30 minutes
2.
6 hours
3.
12 hours
4.
16 hours
11-41.
Readings taken with the hydrometer
require correction due to which of
the following factors?
1.
Temperature different from
the standard
2.
The effect of the dispersing
agent on the liquid density
3.
Difficulty in reading the
meniscus
4.
Each of the above
Learning Objective: Recognize
the types of cement and the tests
used to identify them.
11-42.
Cement is another name for
concrete.
1.
True
2.
False
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