ACI Written Actual Exam And Complete Answers 2024.
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Course
ACI
Institution
ACI
The sensor of the temperature measureing device shall be submerged a minimum of ____ in - Answer 3 (75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly mixed conrcrete to +-_____ degrees F throught a range of _____ - Answer 1(.5 degrees C), 30-12...
ACI Written Actual Exam And Complete Answers 2024.
The sensor of the temperature measureing device shall be submerged a minimum of ____ in - Answer 3
(75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly mixed conrcrete to +-_____ degrees F throught a range of _____ - Answer 1(.5 degrees C), 30-120 (0-50 degrees C)
The temperature measuring device shall be calibrated____, or whenever there is a question of _____ - Answer annually, accuracy
The temp of concrete may be measured in a wheelbarrow - Answer true
the temp of concrete may be measured in a wall form - Answer true
A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temp. - Answer false
What must be done to the sample container prior to sampling the concrete - Answer dampen (with water)
what must be done to the concrete surrounding the temp measuring device after the device has submerged - Answer Press concrete around measuring device
How long must the temp device remain in the concrete - Answer at least 2 minutes (but no more than 5)
After temp of concrete is read, what then is required - Answer reporting of temp the temp of concrete to be measured to the nearest ____degree F - Answer 1 (.5 degree C)
According to the ASTM C1064 what is one reason to take the temp of concrete - Answer verify conformance to a specified requirement for temp
A max temp of concrete is specified in ASTM C1064 - Answer False
The sample of concrete used for temp determination must be rodded 25 times - Answer False
Sampling by this method is required when tests are to be made to determine ____ with specification requirements - Answer compliance
The method covers sampling from four types of mixers which are _____, _____, ____, and _______ - Answer stationary mixes, paving mixers, revolving drum mixers and open top mixers
The maximum allowable time between obtaining the first and final portions of a composite sample is ______ minutes - Answer 15
Portions of a composite sample shall be thoroughly remixed before beginning tests on the sample - Answer True
The maximum elapsed time allowed between obtaining the final portion of the composite sample and beginning the tests for slump, temp, and air content is ______ minutes - Answer 5
the molding of strength test specimens shall begin within ____ minutes after fabricating the composite sample - Answer 15
The concrete sample must be protected from contamination and ____ - Answer rapid evaporation
The minimum size sample test specimen is - Answer 28 L (1ft^3)
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