NICET concrete level 1 EXAM||VERIFIED EXAM!!!||
MOST RECENT EXAM ACTUAL COMPLETE REAL
EXAM QUESTIONS AND CORRECT ANSWERS
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When is an aggregate sample considered at constant
mass? (C29) - Answer-When the 2 sample weights taken
an hour apart is less than .1%
What is the formula for Bulk Density? (C29) - Answer-
(mass of agg. and measure - mass of measure) /volume of
measure
What is is maximum size to use the jigging procedure?
(C29*) - Answer-Greater than 1.5", but no greater than 5"
What is the formula for void content? (C29) - Answer-
100[(bulk specific gravity X density of water) - Bulk Density
of agg./ bulk specific gravity X density of water
bulk density be reported to the nearest.... (C29) - Answer-
1 LB/ft^3
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What is the significance of ASTM C31? - Answer-It
provides the requirements for making, curing, protecting
and transporting concrete specimens
If specimens are made and standard cured what can the
test results be used for? (C31) - Answer--Acceptances for
specific strength
-checking adequacy of mixture proportions
- Quality Control
What is Bulk Density used for? (c29) - Answer-
Determining Mass/volume relationship for conversions in
purchase agreements
What is the dimensions of plate glass? (C29) - Answer-
1/4" thick and at least 1" larger than the diameter of the
measure
What are the requirements for a thermometer? (C1064) -
Answer-has a range of at least 30-120°F and readable to
the nearest 1°F
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When drying aggregate to constant mass, What should
the temperature of the oven be? (C29) - Answer-230°F (+/-
10°F)
if specimens are field cured what can the test results be
used for? (C31) - Answer--Determine if a structure can be
put in service
-comparison with test results of standard cure specimens
-form removal time requirements
What are the specifications of a tamping rod? - Answer-A
round, smooth, straight, steel rod. The length should be at
least 4" greater than the depth of the mold, but no greater
than 24"
When using the a 4"x 8" cylinder, What are the rod
specifications? - Answer-straight, steel, w/hemispherical
tip 3/8" in diameter (+-1/16")
When using a 6" x 12" cylinder, What are the rod
specifications? - Answer-straight, steel w/hemispherical tip
5/8" in diameter (+-1/16)
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What is the minimum amount of cylinders per test?*** -
Answer-3-4"x8"
2-6"x12"
When casting beams how many times should each layer
be rodded? - Answer-1 rod per 2in^2
Where should cylinders be stored after consolidation? -
Answer-in or as near to the formwork as posssible
What is the curing temp. of concrete less than
6000psi?(C31) - Answer-60°F to 80°F
What is the curing temp. of concrete greater than
6000psi?(C31) - Answer-68°F to 78°F
How long must a cylinder be cured before being
transported?(C31) - Answer-8 hours
The percentage error shall not exceed what percentage
for Compression testing machines? (C39) - Answer-1 % of
the indicated load