ACI Concrete Field Testing Technician- Grade I Exam 2023/2024 Questions and with Correct Answers.
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Course
ACI Concrete Field
Institution
ACI Concrete Field
ACI Concrete Field Testing Technician- Grade I
Exam 2023/2024 Questions and with Correct
Answers.
ACI Concrete Field Testing Technician- Grade I
Exam 2023/2024 Questions and with Correct
Answers.
ACI Concrete Field Testing Technician- Grade I
Exam 2023/2024 Questions and with Correct
Answer...
ACI Concrete Field Testing Technician - Grade I Exam 2023/2024 Questions and with Correct Answers. The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. - ANSWER ---3 in. [75 mm] The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to + - _____ degrees F [+ - _____ C] throughout a range of _____. - ANSWER ---1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] The temperature me asuring device shall be calibrated _____, or whenever there is a question of _____. - ANSWER ---Annually, accuracy The temperature of concrete may be measured in a wheelbarrow. True or False? - ANSWER ---True The temperature of concrete may be measured in a wall form. True of False - ANSWER ---True A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temperature. True of False? - ANSWER ---False ACI Concrete Field Testing Technician - Grade I Exam 2023/2024 Questions and with Correct Answers. What must be done to the sample container prior to sampli ng the concrete? - ANSWER ---Dampen (with water) What must be done to the concrete surrounding the temperature measuring device after the device is submerged in the fresh concrete. - ANSWER ---Gently press the concrete around the temperature measuring devic e at the surface of the concrete How long must the temperature measuring device remain in the freshly mixed concrete? - ANSWER ---At least 2 minutes but not more than 5 minutes After the temperature of the concrete is read, what is required? - ANSWER ---Reporting of temperature The temperature of concrete is reported to the nearest _____ degrees F [_____ C] - ANSWER ---1 degree F [0.5 C] According to ASTM C1064, what is one reason to take the temperature of concrete? - ANSWER ---Verify conformance to a spec ified requirement for temperature of concrete ACI Concrete Field Testing Technician - Grade I Exam 2023/2024 Questions and with Correct Answers. A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of False? - ANSWER ---False The sample of concrete used for temperature determination must be rodded 25 times. True or False? - ANSWER ---False Sampling by this method is required when tests are to be made to determine _____ with specification requirements. - ANSWER ---
Compliance This method covers sampling from four types of mixtures which are _____, _____, _____, and _____. - ANSWER ---Stationary mixers, paving mixers, revolving drum mixers, and open top mixers The maximum allowable time between obtaining the first and final port ions of a composite sample is _____ minutes. - ANSWER ---15 Portions of a composite sample shall be thoroughly remixed bfore beginning tests on the sample. True of False? - ANSWER ---True
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