ACI Certification Questions and Answers (100% Correct Answers) Already Graded A+

1
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ACI Certification Questions and Answers
(100% Correct Answers) Already Graded
A+


The end of the temperature sensing portion of the temperature
measuring device is submerged a minimum of _______ mm [
_______ in ] into freshly mixed concrete.
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C1064/C1064M-17—Ans: 75mm or 3in


C1064/C1064M-17
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The temperature measuring device shall be capable of
accurately measuring the temperature of freshly mixed concrete
to ± _______ C [ ± _______ F ] throughout a range of _______ to
_______ *F.


C1064/C1064M-17—Ans: 0.5 C [ ±1F ], throughout a range of [ 30 F
to 120 F ]


C1064/C1064M-17
Report the measured temp of freshly mixed concrete to the
nearest _______C [ _______ F ].


C1064/C1064M-17—Ans: 0.5 C [ 1 F ]


C1064/C1064M-17

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The temperature measuring device shall be verified _______ , or
whenever there is a question of _______ .


C1064/C1064M-17—Ans: Annually, Accuracy


C1064/C1064M-17
The temperature of concrete may be measured in a
wheelbarrow. True or False?


C1064/C1064M-17—Ans: True
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C1064/C1064M-17
The temperature of concrete may be measured in a wall form.
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True or False?


C1064/C1064M-17—Ans: True


C1064/C1064M-17
A composite sample of concrete is required even if the only
purpose for obtaining the sample is to determine temperature.
True or False?


C1064/C1064M-17—Ans: False


C1064/C1064M-17
The design of the temperature measuring device shall be such
that it allows _______ mm [ _______ ] or more immersion during
operation.

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C1064/C1064M-17—Ans: 7mm [ 3in. ]


C1064/C1064M-17
What must be done to the sample container prior to sampling the
concrete?


C1064/C1064M-17—Ans: Dampen (with water)


C1064/C1064M-17
What must be done to the concrete surrounding the temperature
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measuring device after the device is submerged in the fresh
concrete?
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C1064/C1064M-17—Ans: Gently press the concrete around the
temperature measuring device at the surface of the concrete.


C1064/C1064M-17
How long must the temperature measuring device remain in the
freshly mixed concrete?


C1064/C1064M-17—Ans: At least 2 min., but not more than 5 min.


C1064/C1064M-17
After the temperature of the concrete is read, what is then
required?


C1064/C1064M-17—Ans: Reporting the temperature.


C1064/C1064M-17

, 4
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The temperature of the concrete is reported to the nearest _______
C [ ______ F ]


C1064/C1064M-17—Ans: 0.5, [ 1 * F ]


C1064/C1064M-17
According to the Test Method C1064/C1064M, what is one reason
to take the temperature of concrete?


C1064/C1064M-17—Ans: Verify conformance to a specified
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requirement for temperature of concrete


C1064/C1064M-17
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A maximum temperature of freshly mixed concrete is specified in
Test Method C1064/C1064M. True or False?


C1064/C1064M-17—Ans: False


C1064/C1064M-17
The sample of concrete used for temperature determination must
be rodded 25 times. True or False?


C1064/C1064M-17—Ans: False


C1064/C1064M-17
Container, shall be large enough to provide at least _______mm [
_______ ] of concrete in all directions around the sensor of the
temperature measuring device