EXAM 2026-2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
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What are the specs for a 4" mold for standard proctor? D698 -
ANSWER --4" (+-
).016" average inside
diameter
-4.584 (+-).018"
height
.0750 (+-).0009 ft^3
volume
What are the specs for a 6" mold for standard proctor? D698 -
ANSWER --6" (+-
).026" average inside
diameter
-4.584 (+-).018"
height
.0750 (+-).0009 ft^3
volume
What are the specs for a Rammer in a standard proctor? D698
- ANSWER --
Shall fall freely a distance of
12(+- .05")
, -The weight shall be 5.50(+-
.02 lbf)
What are the specs for a straight edge? D698 - ANSWER --a stiff
metal straight
edge no less than
10"
-shall be straight
with .05"
-Scraping edge shall be no thicker
than ⅛"
When should you standardize/calibrate the molds in D698? -
ANSWER -before
initial use, after repairs, annually or after 1000 test
specimens
how many lifts and blows should a 4" mold be compacted on
standard proctor?
D698 - ANSWER -3 lifts, 25
blows each
how many lifts and blows should a 6" mold be compacted in
standard proctor?
D698 - ANSWER -3 lifts, 56
blows each
When calibrating mold in D698 the difference between 2
methods shall not