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