1 for specific request mail
ACI Aggregate Level 1 Study Material Questions and
Correct Answers | Latest Update
D75
The following are three of the four purposes for which aggregates are
sampled; supply the fourth.
a) for the acceptance or rejection of materials.
b) for the control of operations at the site of use.
Assignment Expert
c) for preliminary investigation of the potential source of supply.
d) _____________________
Guru01 - Stuvia
Ans: control the product at the source of supply
D75
2026
Sampling should be done very carefully because it is as important as
________.
©
Ans: testing
D75
A variety of people involved in the use of aggregate samples are
responsible for obtaining the samples. True or False?
Ans: False, should be performed by trained personnel
D75
The _____ or _____ should obtain samples related to the control of
production at the source or related to the control of the work at the site.
Ans: manufacturers, contractors
D75
, 2 for specific request mail
The purchaser is responsible for obtaining samples for preliminary
investigation tests. True or False?
Ans: False, should be used for accepting or rejecting decisions
D75
Samples to be tested for quality should, when possible, be obtained from
the ______.
Ans: finished product
D75
Assignment Expert
Appropriate equipment for inspection and sampling should be provided
Guru01 - Stuvia
by ________.
a) the seller
b) the purchaser
2026
c) the salesperson
©
d) the user
Ans: a) the seller
D75
Use a ___________ method for selecting samples from conveyor belts.
Ans: random
D75
The four sources from which field samples can be obtained include:
a) Flowing aggregate streams
b)_____________
, 3 for specific request mail
c)____________ or ___________
d)______________
Ans: conveyor belt, stockpile or transportation unit, roadway bases
D75
Sampling from stockpiles should follow the standard method for all
sampling so that there will be confidence in the results obtained.
True or False?
Assignment Expert
Ans: False, a sampling plan needs to be designed
D75
Guru01 - Stuvia
The number of _________ required by any of the methods depends on the
criticality of and variation in the properties to be measured.
2026
Ans: field samples
D75
©
The field samples are based on the _________ and _________ of tests that
will be run.
Ans: type, number
D75
Shipping containers for aggregate samples should be made so that the
contents will not be lost, _________ or _________.
Ans: contaminated, damaged
D75
The reason it is difficult to obtain unbiased samples from stockpiles is
because coarse and fine particles become segregated.
, 4 for specific request mail
True or False?
Ans: True
D75
_____________ can help in obtaining accurate samples from stockpiles.
Ans: Power equipment
C702
The sample splitters shall have an even number of equal width chutes,
Assignment Expert
but not less than a total of _______ for coarse aggregrate, or ________ for
fine aggregrate.
Guru01 - Stuvia
a) 8, 12
b) 10, 12
2026
c) 4, 6
d) 4, 8
©
Ans: a) 8, 12
C702
For coarse aggregrate and mixed aggregrate, the minimum width of the
individual chutes shall be approximately ______ % larger than the largest
particles in the sample to be split.
a) 10
b) 25
c) 50
d) 75
Ans: c) 50
ACI Aggregate Level 1 Study Material Questions and
Correct Answers | Latest Update
D75
The following are three of the four purposes for which aggregates are
sampled; supply the fourth.
a) for the acceptance or rejection of materials.
b) for the control of operations at the site of use.
Assignment Expert
c) for preliminary investigation of the potential source of supply.
d) _____________________
Guru01 - Stuvia
Ans: control the product at the source of supply
D75
2026
Sampling should be done very carefully because it is as important as
________.
©
Ans: testing
D75
A variety of people involved in the use of aggregate samples are
responsible for obtaining the samples. True or False?
Ans: False, should be performed by trained personnel
D75
The _____ or _____ should obtain samples related to the control of
production at the source or related to the control of the work at the site.
Ans: manufacturers, contractors
D75
, 2 for specific request mail
The purchaser is responsible for obtaining samples for preliminary
investigation tests. True or False?
Ans: False, should be used for accepting or rejecting decisions
D75
Samples to be tested for quality should, when possible, be obtained from
the ______.
Ans: finished product
D75
Assignment Expert
Appropriate equipment for inspection and sampling should be provided
Guru01 - Stuvia
by ________.
a) the seller
b) the purchaser
2026
c) the salesperson
©
d) the user
Ans: a) the seller
D75
Use a ___________ method for selecting samples from conveyor belts.
Ans: random
D75
The four sources from which field samples can be obtained include:
a) Flowing aggregate streams
b)_____________
, 3 for specific request mail
c)____________ or ___________
d)______________
Ans: conveyor belt, stockpile or transportation unit, roadway bases
D75
Sampling from stockpiles should follow the standard method for all
sampling so that there will be confidence in the results obtained.
True or False?
Assignment Expert
Ans: False, a sampling plan needs to be designed
D75
Guru01 - Stuvia
The number of _________ required by any of the methods depends on the
criticality of and variation in the properties to be measured.
2026
Ans: field samples
D75
©
The field samples are based on the _________ and _________ of tests that
will be run.
Ans: type, number
D75
Shipping containers for aggregate samples should be made so that the
contents will not be lost, _________ or _________.
Ans: contaminated, damaged
D75
The reason it is difficult to obtain unbiased samples from stockpiles is
because coarse and fine particles become segregated.
, 4 for specific request mail
True or False?
Ans: True
D75
_____________ can help in obtaining accurate samples from stockpiles.
Ans: Power equipment
C702
The sample splitters shall have an even number of equal width chutes,
Assignment Expert
but not less than a total of _______ for coarse aggregrate, or ________ for
fine aggregrate.
Guru01 - Stuvia
a) 8, 12
b) 10, 12
2026
c) 4, 6
d) 4, 8
©
Ans: a) 8, 12
C702
For coarse aggregrate and mixed aggregrate, the minimum width of the
individual chutes shall be approximately ______ % larger than the largest
particles in the sample to be split.
a) 10
b) 25
c) 50
d) 75
Ans: c) 50
