ACI CONCRETE FIELD TESTING TECHNICIAN-
GRADE I EXAM 2025| ACTUAL EXAM WITH
100% VERIFIED ANSWERS|PROFESSOR
VERIFIED|LATEST UPDATE
The sensor of the temperature measuring device shall be submerged a
minimum of _____ in. [_____mm] into the freshly mixed concrete. -
CORRECT-ANSWER-3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring
temperature of freshly mixed concrete to +- _____ degrees F [+- _____
C] throughout a range of _____. - CORRECT-ANSWER-1 degree F [0.5 C],
30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____, or
whenever there is a question of _____. - CORRECT-ANSWER-Annually,
accuracy
,The temperature of concrete may be measured in a wheelbarrow. True
or False? - CORRECT-ANSWER-True
The temperature of concrete may be measured in a wall form. True of
False - CORRECT-ANSWER-True
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temperature. True of False? -
CORRECT-ANSWER-False
What must be done to the sample container prior to sampling the
concrete? - CORRECT-ANSWER-Dampen (with water)
The composite sample for a paving mixer must represent a minimum of
_____ different portions of the batch of concrete taken from the pile
after discharge. - CORRECT-ANSWER-5
,When sampling from a revolving drum truck mixer, concrete must be
sampled at a minimum of _____ regularly spaced intervals during
discharge of the middle portion of this batch. - CORRECT-ANSWER-2
Concrete samples from a truck mixer must be obtained before any
water or admixtures are added to the mixer at the job site. True or
False? - CORRECT-ANSWER-False
The composite samples from a truck mixer must be obtained from the
_____ portion of the batch. - CORRECT-ANSWER-Middle
When the concrete contains aggregate larger than that permitted for a
particular test method, the sample of concrete must be _____ _____
before making the test. - CORRECT-ANSWER-Wet sieved
The slump test is applicable to plastic concrete with a maximum size
aggregate of _____. - CORRECT-ANSWER-1.5 in. [37.5 mm]
, When the concrete contains aggregate larger than allowed for the
slump test, the large aggregate must be _____. - CORRECT-ANSWER-
Removed by wet sieving the sample over 1.5 in. [37.5 mm] sieve
The mold for making the slump test is in the shape of _____. -
CORRECT-ANSWER-The frustum of a cone
The height of the slump mold is _____. - CORRECT-ANSWER-12 in. [300
mm]
The interior surface of the slump mold is allowed to have minor
irregularities. True or False? - CORRECT-ANSWER-False
For use in the slump test, the end or both ends of the tamping rod must
be _____. - CORRECT-ANSWER-Rounded to a hemispherical tip
GRADE I EXAM 2025| ACTUAL EXAM WITH
100% VERIFIED ANSWERS|PROFESSOR
VERIFIED|LATEST UPDATE
The sensor of the temperature measuring device shall be submerged a
minimum of _____ in. [_____mm] into the freshly mixed concrete. -
CORRECT-ANSWER-3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring
temperature of freshly mixed concrete to +- _____ degrees F [+- _____
C] throughout a range of _____. - CORRECT-ANSWER-1 degree F [0.5 C],
30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____, or
whenever there is a question of _____. - CORRECT-ANSWER-Annually,
accuracy
,The temperature of concrete may be measured in a wheelbarrow. True
or False? - CORRECT-ANSWER-True
The temperature of concrete may be measured in a wall form. True of
False - CORRECT-ANSWER-True
A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temperature. True of False? -
CORRECT-ANSWER-False
What must be done to the sample container prior to sampling the
concrete? - CORRECT-ANSWER-Dampen (with water)
The composite sample for a paving mixer must represent a minimum of
_____ different portions of the batch of concrete taken from the pile
after discharge. - CORRECT-ANSWER-5
,When sampling from a revolving drum truck mixer, concrete must be
sampled at a minimum of _____ regularly spaced intervals during
discharge of the middle portion of this batch. - CORRECT-ANSWER-2
Concrete samples from a truck mixer must be obtained before any
water or admixtures are added to the mixer at the job site. True or
False? - CORRECT-ANSWER-False
The composite samples from a truck mixer must be obtained from the
_____ portion of the batch. - CORRECT-ANSWER-Middle
When the concrete contains aggregate larger than that permitted for a
particular test method, the sample of concrete must be _____ _____
before making the test. - CORRECT-ANSWER-Wet sieved
The slump test is applicable to plastic concrete with a maximum size
aggregate of _____. - CORRECT-ANSWER-1.5 in. [37.5 mm]
, When the concrete contains aggregate larger than allowed for the
slump test, the large aggregate must be _____. - CORRECT-ANSWER-
Removed by wet sieving the sample over 1.5 in. [37.5 mm] sieve
The mold for making the slump test is in the shape of _____. -
CORRECT-ANSWER-The frustum of a cone
The height of the slump mold is _____. - CORRECT-ANSWER-12 in. [300
mm]
The interior surface of the slump mold is allowed to have minor
irregularities. True or False? - CORRECT-ANSWER-False
For use in the slump test, the end or both ends of the tamping rod must
be _____. - CORRECT-ANSWER-Rounded to a hemispherical tip
