ACI Aggregate Level 1 Study
Material Questions And
Answers.
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.
c) for preliminary investigation of the potential source of supply.
d) _____________________ - (correct answer) -control the product at the
source of supply
D75
Sampling should be done very carefully because it is as important as
________. - (correct answer) -testing
D75
A variety of people involved in the use of aggregate samples are responsible
for obtaining the samples. True or False? - (correct answer) -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. - (correct
answer) -manufacturers, contractors
,D75
The purchaser is responsible for obtaining samples for preliminary
investigation tests. True or False? - (correct answer) -False, should be used for
accepting or rejecting decisions
D75
Samples to be tested for quality should, when possible, be obtained from the
______. - (correct answer) -finished product
D75
Appropriate equipment for inspection and sampling should be provided by
________.
a) the seller
b) the purchaser
c) the salesperson
d) the user - (correct answer) -a) the seller
D75
Use a ___________ method for selecting samples from conveyor belts. -
(correct answer) -random
D75
The four sources from which field samples can be obtained include:
a) Flowing aggregate streams
b)_____________
c)____________ or ___________
d)______________ - (correct answer) -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? - (correct answer) -False, a sampling plan needs to be designed
D75
The number of _________ required by any of the methods depends on the
criticality of and variation in the properties to be measured. - (correct answer)
-field samples
D75
The field samples are based on the _________ and _________ of tests that will
be run. - (correct answer) -type, number
D75
Shipping containers for aggregate samples should be made so that the
contents will not be lost, _________ or _________. - (correct answer) -
contaminated, damaged
D75
The reason it is difficult to obtain unbiased samples from stockpiles is because
coarse and fine particles become segregated.
True or False? - (correct answer) -True
D75
_____________ can help in obtaining accurate samples from stockpiles. -
(correct answer) -Power equipment
C702
The sample splitters shall have an even number of equal width chutes, but not
less than a total of _______ for coarse aggregrate, or ________ for fine
aggregrate.
a) 8, 12
Material Questions And
Answers.
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.
c) for preliminary investigation of the potential source of supply.
d) _____________________ - (correct answer) -control the product at the
source of supply
D75
Sampling should be done very carefully because it is as important as
________. - (correct answer) -testing
D75
A variety of people involved in the use of aggregate samples are responsible
for obtaining the samples. True or False? - (correct answer) -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. - (correct
answer) -manufacturers, contractors
,D75
The purchaser is responsible for obtaining samples for preliminary
investigation tests. True or False? - (correct answer) -False, should be used for
accepting or rejecting decisions
D75
Samples to be tested for quality should, when possible, be obtained from the
______. - (correct answer) -finished product
D75
Appropriate equipment for inspection and sampling should be provided by
________.
a) the seller
b) the purchaser
c) the salesperson
d) the user - (correct answer) -a) the seller
D75
Use a ___________ method for selecting samples from conveyor belts. -
(correct answer) -random
D75
The four sources from which field samples can be obtained include:
a) Flowing aggregate streams
b)_____________
c)____________ or ___________
d)______________ - (correct answer) -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? - (correct answer) -False, a sampling plan needs to be designed
D75
The number of _________ required by any of the methods depends on the
criticality of and variation in the properties to be measured. - (correct answer)
-field samples
D75
The field samples are based on the _________ and _________ of tests that will
be run. - (correct answer) -type, number
D75
Shipping containers for aggregate samples should be made so that the
contents will not be lost, _________ or _________. - (correct answer) -
contaminated, damaged
D75
The reason it is difficult to obtain unbiased samples from stockpiles is because
coarse and fine particles become segregated.
True or False? - (correct answer) -True
D75
_____________ can help in obtaining accurate samples from stockpiles. -
(correct answer) -Power equipment
C702
The sample splitters shall have an even number of equal width chutes, but not
less than a total of _______ for coarse aggregrate, or ________ for fine
aggregrate.
a) 8, 12
