ACI Concrete Field Testing Technician- Grade I Exam
A maximum temperature of freshly mixed concrete is False
specified in ASTM C1064. True of False?
The sample of concrete used for temperature False
determination must be rodded 25 times. True or False?
Sampling by this method is required when tests are to Compliance
be made to determine _____ with specification
requirements.
This method covers sampling from four types of Stationary mixers, paving mixers, revolving drum mixers, and open top mixers
mixtures which are _____, _____, _____, and _____.
The maximum allowable time between obtaining the 15
first and final portions of a composite sample is _____
minutes.
Portions of a composite sample shall be thoroughly True
remixed bfore beginning tests on the sample. True of
False?
The maximum elapsed time allowed between obtaining 5
the final portion of the composite sample and
beginning the tests for slump, temperature, and air
content is _____ minutes.
The molding of strength test specimens shall begin 15
within _____ minutes after fabricating the composite
sample.
The concrete sample must be protected from Rapid evaporation
contamination and _____.
The minimum size sample for making strength test 28 L (1ft^3)
specimens is _____.
When sampling from a stationary mixer, the batch must 2
be sampled at _____ or more regularly spaced intervals
during discharge of the middle portion of the batch
, ACI Concrete Field Testing Technician- Grade I Exam
The composite sample for a paving mixer must 5
represent a minimum of _____ different portions of the
batch of concrete taken from the pile after discharge.
When sampling from a revolving drum truck mixer, 2
concrete must be sampled at a minimum of _____
regularly spaced intervals during discharge of the
middle portion of this batch.
Concrete samples from a truck mixer must be obtained False
before any water or admixtures are added to the mixer
at the job site. True or False?
The composite samples from a truck mixer must be Middle
obtained from the _____ portion of the batch.
When the concrete contains aggregate larger than that Wet sieved
permitted for a particular test method, the sample of
concrete must be _____ _____ before making the test.
The slump test is applicable to plastic concrete with a 1.5 in. [37.5 mm]
maximum size aggregate of _____.
When the concrete contains aggregate larger than Removed by wet sieving the sample over 1.5 in. [37.5 mm] sieve
allowed for the slump test, the large aggregate must be
_____.
The mold for making the slump test is in the shape of The frustum of a cone
_____.
The height of the slump mold is _____. 12 in. [300 mm]
The interior surface of the slump mold is allowed to False
have minor irregularities. True or False?
For use in the slump test, the end or both ends of the Rounded to a hemispherical tip
tamping rod must be _____.
The sample of concrete for use in making the slump C172, Standard Practice for Sampling Freshly Mixed Concrete
test must be obained in accordance with ASTM
Standard _____.
The slump mold should be in a dry condition before False
beginning the test. True or False?
A maximum temperature of freshly mixed concrete is False
specified in ASTM C1064. True of False?
The sample of concrete used for temperature False
determination must be rodded 25 times. True or False?
Sampling by this method is required when tests are to Compliance
be made to determine _____ with specification
requirements.
This method covers sampling from four types of Stationary mixers, paving mixers, revolving drum mixers, and open top mixers
mixtures which are _____, _____, _____, and _____.
The maximum allowable time between obtaining the 15
first and final portions of a composite sample is _____
minutes.
Portions of a composite sample shall be thoroughly True
remixed bfore beginning tests on the sample. True of
False?
The maximum elapsed time allowed between obtaining 5
the final portion of the composite sample and
beginning the tests for slump, temperature, and air
content is _____ minutes.
The molding of strength test specimens shall begin 15
within _____ minutes after fabricating the composite
sample.
The concrete sample must be protected from Rapid evaporation
contamination and _____.
The minimum size sample for making strength test 28 L (1ft^3)
specimens is _____.
When sampling from a stationary mixer, the batch must 2
be sampled at _____ or more regularly spaced intervals
during discharge of the middle portion of the batch
, ACI Concrete Field Testing Technician- Grade I Exam
The composite sample for a paving mixer must 5
represent a minimum of _____ different portions of the
batch of concrete taken from the pile after discharge.
When sampling from a revolving drum truck mixer, 2
concrete must be sampled at a minimum of _____
regularly spaced intervals during discharge of the
middle portion of this batch.
Concrete samples from a truck mixer must be obtained False
before any water or admixtures are added to the mixer
at the job site. True or False?
The composite samples from a truck mixer must be Middle
obtained from the _____ portion of the batch.
When the concrete contains aggregate larger than that Wet sieved
permitted for a particular test method, the sample of
concrete must be _____ _____ before making the test.
The slump test is applicable to plastic concrete with a 1.5 in. [37.5 mm]
maximum size aggregate of _____.
When the concrete contains aggregate larger than Removed by wet sieving the sample over 1.5 in. [37.5 mm] sieve
allowed for the slump test, the large aggregate must be
_____.
The mold for making the slump test is in the shape of The frustum of a cone
_____.
The height of the slump mold is _____. 12 in. [300 mm]
The interior surface of the slump mold is allowed to False
have minor irregularities. True or False?
For use in the slump test, the end or both ends of the Rounded to a hemispherical tip
tamping rod must be _____.
The sample of concrete for use in making the slump C172, Standard Practice for Sampling Freshly Mixed Concrete
test must be obained in accordance with ASTM
Standard _____.
The slump mold should be in a dry condition before False
beginning the test. True or False?
