ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM QUESTIONS WITH COMPLETE SOLUTIONS
6 views 0 purchase
Course
ACI
Institution
ACI
ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM QUESTIONS WITH COMPLETE SOLUTIONS
Testing
Sampling should be done very carefully because it is as important as ____________.
Conveyer belts
Transport units
Roadways
Stockpiles
What are the four sources from which field samples can be obtained?
...
ACI - AGGREGATE BASE TESTING TECHNICIAN EXAM
QUESTIONS WITH COMPLETE SOLUTIONS
Testing
Sampling should be done very carefully because it is as important as ____________.
Conveyer belts
Transport units
Roadways
Stockpiles
What are the four sources from which field samples can be obtained?
contaminated, damaged
Sampling containers for aggregate samples should be made so that the contents will
not be lost, _____ or _____.
Nonrepresentative sample
Not using correct procedures for reducing samples to testing size can result in a _____.
False
T or F
Generally, small samples are most representative of the total supply.
True
T or F
There are some instances in which differences between test samples can't be avoided.
Laws of chance
What determines whether large-size particles are equally distributed among test
samples that have been reduced?
Method A, mechanical splitter
Which method of reducing a sample must be used with fine, dry aggregate?
Moisten the sample
What must be done to the sample if method B or C is used?
, Dry the sample
What do you do if the sample is wet and Method A is to be used?
Coarse aggregate, or mixtures of coarse and fine aggregate
Method C, miniature stockpiling, cannot be used for which type of aggregate?
Method A
Which method involves the use of chutes, holding receptacles, and hoppers or straight-
edged pans?
8
Sample splitters must have how many equal width chutes for coarse aggregate?
12
Sample splitters must have how many equal width chutes for fine aggregate?
conical pile
In Methods B and C the sample is shoveled into a ____ before it is flattened and
divided.
Canvas blanket or tear resistant tarp
When using Method B, what is an alternate surface that can be used when reducing the
sample?
diagonally opposite
When quartering a sample, retain two _________ quarters and reject the other two.
5, random
In miniature stockpile sampling, obtain the sample by selecting at least ____ increments
of material from ____ locations in the stockpile.
60C/140F
The drying apparatus used for dry preparation of a sample is any suitable device
capable of drying samples at a temperature not exceeding _____.
representative, fines
A suitable sample splitter is one capable of obtaining ____ portions of the sample
without appreciable loss of ____.
110, 60
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LIXAN. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.49. You're not tied to anything after your purchase.
