ACI Written Exam Questions & Answers
The sensor of the temperature measureing device shall be submerged a minimum of ____ in -
ANSWERS3 (75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly
mixed conrcrete to +-_____ degrees F throught a range of _____ - ANSWERS1(.5 degrees C), 30-
120 (0-50 degrees C)
The temperature measuring device shall be calibrated____, or whenever there is a question of
_____ - ANSWERSannually, accuracy
The temp of concrete may be measured in a wheelbarrow - ANSWERStrue
the temp of concrete may be measured in a wall form - ANSWERStrue
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temp. - ANSWERSfalse
What must be done to the sample container prior to sampling the concrete - ANSWERSdampen
(with water)
what must be done to the concrete surrounding the temp measuring device after the device has
submerged - ANSWERSPress concrete around measuring device
How long must the temp device remain in the concrete - ANSWERSat least 2 minutes (but no
more than 5)
, After temp of concrete is read, what then is required - ANSWERSreporting of temp
the temp of concrete to be measured to the nearest ____degree F - ANSWERS1 (.5 degree C)
According to the ASTM C1064 what is one reason to take the temp of concrete - ANSWERSverify
conformance to a specified requirement for temp
A max temp of concrete is specified in ASTM C1064 - ANSWERSFalse
The sample of concrete used for temp determination must be rodded 25 times - ANSWERSFalse
Sampling by this method is required when tests are to be made to determine ____ with
specification requirements - ANSWERScompliance
The method covers sampling from four types of mixers which are _____, _____, ____, and
_______ - ANSWERSstationary 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 - ANSWERS15
Portions of a composite sample shall be thoroughly remixed before beginning tests on the
sample - ANSWERSTrue
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 - ANSWERS5
the molding of strength test specimens shall begin within ____ minutes after fabricating the
composite sample - ANSWERS15
The sensor of the temperature measureing device shall be submerged a minimum of ____ in -
ANSWERS3 (75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly
mixed conrcrete to +-_____ degrees F throught a range of _____ - ANSWERS1(.5 degrees C), 30-
120 (0-50 degrees C)
The temperature measuring device shall be calibrated____, or whenever there is a question of
_____ - ANSWERSannually, accuracy
The temp of concrete may be measured in a wheelbarrow - ANSWERStrue
the temp of concrete may be measured in a wall form - ANSWERStrue
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temp. - ANSWERSfalse
What must be done to the sample container prior to sampling the concrete - ANSWERSdampen
(with water)
what must be done to the concrete surrounding the temp measuring device after the device has
submerged - ANSWERSPress concrete around measuring device
How long must the temp device remain in the concrete - ANSWERSat least 2 minutes (but no
more than 5)
, After temp of concrete is read, what then is required - ANSWERSreporting of temp
the temp of concrete to be measured to the nearest ____degree F - ANSWERS1 (.5 degree C)
According to the ASTM C1064 what is one reason to take the temp of concrete - ANSWERSverify
conformance to a specified requirement for temp
A max temp of concrete is specified in ASTM C1064 - ANSWERSFalse
The sample of concrete used for temp determination must be rodded 25 times - ANSWERSFalse
Sampling by this method is required when tests are to be made to determine ____ with
specification requirements - ANSWERScompliance
The method covers sampling from four types of mixers which are _____, _____, ____, and
_______ - ANSWERSstationary 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 - ANSWERS15
Portions of a composite sample shall be thoroughly remixed before beginning tests on the
sample - ANSWERSTrue
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 - ANSWERS5
the molding of strength test specimens shall begin within ____ minutes after fabricating the
composite sample - ANSWERS15
