ASTM D75 - Standard Practice for Sampling Aggregates TESTS WITH ANSWERS A+ GRADE.
When sampling an aggregate source, every precaution shall be used to _____ that will show the ____ ,
and ____ of the materials they represent. - obtain samples , nature , condition
D75, 4.1
Transport aggregate in bags or other containers so constructed as to prevent ____ or ____ of the sample. -
loss or contamination
D75, 6.1
After obtaining all increments from the unit being tested, combine the material to form ____ . - a field
sample
D75, 5.3.1 ; 5.3.2 ; 5.3.3.3 ; 5.3.5.2
The mass of a field sample will depend on the _____ and ____ of tests to be conducted with the material.
- type, number
D75, 5.4.2
Obtain test portions from the field samples in accordance with _____ . - Practice C702
D75, 5.4.2
_____ or ____ of the material is one purpose for sampling aggregate in accordance with Practice D75. -
acceptance or rejection
D75, 4.2
, When sampling from a stream, conveyor belt or roadway, obtain at least five approximately equal
increments of material. (T/F) - False , at least three
D75, 5.3.1 ; 5.3.2 ; 5.3.3.3 ; 5.3.5.2
When sampling from a conveyor belt, scoop all material from between the templates, including fines, into
a suitable container. (T/F) - True
D75, 5.3.2
Aggregate shipping containers shall have _____ ____ ____ attached. - suitable individual identification
D75, 6.2
The number of field samples obtained should be sufficient to give the desired confidence in any test
result. (T/F) - True
D75, 5.4.1
Samples to be used in acceptance or rejection decisions by the purchaser shall be obtained by an
independent third party. (T/F) - False , experienced and trained personnel
D75, 4.2
The source material shall be inspected to determine discernible variations. (T/F) - True
D75, X.1.2.1
When sampling from a flowing aggregate stream, take each increment from the _____ ____ ____ of
material as it is discharged - entire cross section
When sampling an aggregate source, every precaution shall be used to _____ that will show the ____ ,
and ____ of the materials they represent. - obtain samples , nature , condition
D75, 4.1
Transport aggregate in bags or other containers so constructed as to prevent ____ or ____ of the sample. -
loss or contamination
D75, 6.1
After obtaining all increments from the unit being tested, combine the material to form ____ . - a field
sample
D75, 5.3.1 ; 5.3.2 ; 5.3.3.3 ; 5.3.5.2
The mass of a field sample will depend on the _____ and ____ of tests to be conducted with the material.
- type, number
D75, 5.4.2
Obtain test portions from the field samples in accordance with _____ . - Practice C702
D75, 5.4.2
_____ or ____ of the material is one purpose for sampling aggregate in accordance with Practice D75. -
acceptance or rejection
D75, 4.2
, When sampling from a stream, conveyor belt or roadway, obtain at least five approximately equal
increments of material. (T/F) - False , at least three
D75, 5.3.1 ; 5.3.2 ; 5.3.3.3 ; 5.3.5.2
When sampling from a conveyor belt, scoop all material from between the templates, including fines, into
a suitable container. (T/F) - True
D75, 5.3.2
Aggregate shipping containers shall have _____ ____ ____ attached. - suitable individual identification
D75, 6.2
The number of field samples obtained should be sufficient to give the desired confidence in any test
result. (T/F) - True
D75, 5.4.1
Samples to be used in acceptance or rejection decisions by the purchaser shall be obtained by an
independent third party. (T/F) - False , experienced and trained personnel
D75, 4.2
The source material shall be inspected to determine discernible variations. (T/F) - True
D75, X.1.2.1
When sampling from a flowing aggregate stream, take each increment from the _____ ____ ____ of
material as it is discharged - entire cross section
