ACI (AMERICAN CONCRETE INSTITUTE) WRITTEN TEST EXAM 2024 ACTUAL
EXAM 200 QUESTIONS WITH DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS) ALREADY GRADED A+
When a vibrator is used to consolidate the
concrete in the measure, fill the
measure in ______ equal layers. - .....ANSWER
>>>>2
6. After completing the consolidation portion of
the test, it is optimal to have approximately 1/8
inch of excess concrete above the rim of the
measure. - .....ANSWER >>>>T
It is allowable to add a small quantity of concrete
to the measure to correct a deficiency. -
.....ANSWER >>>>T
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8. To insure that the measure is completely full
with concrete and the surface is level, strike off
the top surface of concrete using ________. -
.....ANSWER >>>>only strike off plate
In order to determine the density of fresh
concrete, it is necessary to determine
__________. - .....ANSWER >>>>the weight and
volume of the filled measure as well as the
weight of the
empty measure.
Yield represents the ________. - .....ANSWER
>>>>d. volume of concrete produced per batch
MAKING AND CURING CONCRETE - .....ANSWER
>>>>
1. The standard sized flexural strength specimen
has cross-sectional dimensions of - .....ANSWER
>>>>6in. x 6in
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2. The standard sized compressive cylinder and
flexural beam molds are used for concrete with
nominal maximum sized coarse aggregate up to
_________. - .....ANSWER >>>>2 in
A flexural beam is filled in ______ layer(s) of
approximately equal depth. - .....ANSWER >>>>2
ACI Field Testing Technicians, Grade I or
equivalent certification is not required is required
when testing for slump, air content, and density,
but not for making test specimens.. - .....ANSWER
>>>>F
When test specimens are to be molded, it is not
necessary to determine the slump, air content,
and temperature of fresh concrete. - .....ANSWER
>>>>F
6. Single-use cylinder molds that are susceptible
to damage when tapped with a rubber mallet
should instead by tapped 10 to 15 times with -
.....ANSWER >>>>with an open hand
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7. Concrete test specimens with a specified
compressive strength less than 6,000psi, should
be initially cured in a temperature range from -
.....ANSWER >>>>60 to 80
Initial curing must continue for a period -
.....ANSWER >>>>up to 48 hours
Test specimens shall not be transported until at
least ______ hours after initial set has occurred. -
.....ANSWER >>>>8
****Specimens made for determining when a
structure can be placed in service shall be
removed from their molds at the same time the
formwork is removed. - .....ANSWER >>>>T
11. The concrete used to mold test specimens
should not be sampled before any on-site
adjustments in water or admixtures are made. -
.....ANSWER >>>>T
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