Exam (elaborations)
ACI Concrete Field Testing Technician - Grade I /Questions And Answers
- Course
- Institution
ACI Concrete Field Testing Technician - Grade I /Questions And Answers
[Show more]
Seller
Follow
HELLENAH
Reviews received
Content preview
ACI Concrete Field Testing Technician - Grade I/Questions And Answers
Quiz :The end of the temperature sensing portion of the temperature
measuring device is submerged a minimum of __mm [__in.] into the freshly
mixed concrete. - Answer :77mm /3in.
Quiz :The temperature measuring device shall be capable of accurately
measuring the temperature of freshly mixed concrete to +- __C [+__F]
throught a range of __. - Answer :0.5 C / +-1F / 0-50 Decrees C
Quiz :The temp. measuring device shall be verified __, or whenever there is a
question of __. - Answer :Annually / accuracy
Quiz :The temp of concrete may be measured in a wheelbarrow? T/F - Answer
:True
Quiz :The temp. of concrete may be measured in a wall form. T/F -
Answer :True
Quiz :A composite sample of concrete is required even if the only purpose for
obtaining the sample is to determine temp. T/F - Answer :False
Quiz :What must be done to the sample container prior to sampling the
concrete - Answer :It must be dampened with water
Quiz :What must be done to the concrete surrounding the temp measuring
device after the device is submerged in the fresh concrete? - Answer :Gently
press the concrete at the surface around the measuring device.
Quiz :How long must the temperature measuring device remain in the freshly
mixed concrete? - Answer :At least 2 min., no longer than 5 min.
Quiz :After the temperature of the concrete is read, what is then required? -
Answer :Reporting of temp.
Quiz :The temp. of concrete is reported to the nearest __. - Answer :1 degree
F
, Quiz :According to ASTM C1064, what is one reason to take the temperature
of concrete? - Answer :to verify conformance to a specific requirement.
Quiz :A max. temp. of freshly mixed concrete is specified in ASTM C1064. T/F -
Answer :False
Quiz :The sample of concrete used for temperature determination must be
rodded 25 times. - Answer :False
Quiz :Sampling by this method covers procedures or obtaining representative
samples, on which test are to be performed to determined __ with quality
requirements of the specifications under which the concrete is furnished. -
Answer :Compliance
Quiz :This method covers sampling from four types of mixers, which are __,
__, __, and __. - Answer :Stationary mixers / Paving mixers / revolving drum
mixers / open top mixers
Quiz :The elapsed time between obtaining the first and final portions of a
composite sample shall not exceed __ min. - Answer :15 min.
Quiz :Portions of a composite sample shall be thoroughly mixed before
beginning test on the sample. T/F - Answer :True
Quiz :Start tests for slump, temp, and air content within __ min. after
obtaining the final portion of the composite sample. - Answer :5 min.
Quiz :start molding specimens fr strength tests within __ after fabrication the
composite sample. - Answer :15 min.
Quiz :The concrete sample must be protected from contamination and __. -
Answer :Rapid evaporation
Quiz :The maximum size sample for making strength test specimens is __ ft
cubed - Answer :1 foot cubed.
Quiz :When sampling from a STATIONARY mixer, the batch must be sampled
at __ or more regularly spaced intervals during discharge of the middle portion
of the batch. - Answer :2
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 HELLENAH. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76799 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now