ACI Written Exam Questions with
Complete Solutions14
The sensor of the temperature measureing device shall be submerged a minimum of ____ in -
ANSWERS-3 (75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly
mixed conrcrete to +-_____ degrees F throught a range of _____ - ANSWERS-1(.5 degrees C),
30-120 (0-50 degrees C)
The temperature measuring device shall be calibrated____, or whenever there is a question of
_____ - ANSWERS-annually, accuracy
The temp of concrete may be measured in a wheelbarrow - ANSWERS-true
the temp of concrete may be measured in a wall form - ANSWERS-true
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temp. - ANSWERS-false
What must be done to the sample container prior to sampling the concrete - ANSWERS-dampen
(with water)
what must be done to the concrete surrounding the temp measuring device after the device has
submerged - ANSWERS-Press concrete around measuring device
, How long must the temp device remain in the concrete - ANSWERS-at least 2 minutes (but no
more than 5)
After temp of concrete is read, what then is required - ANSWERS-reporting of temp
the temp of concrete to be measured to the nearest ____degree F - ANSWERS-1 (.5 degree C)
According to the ASTM C1064 what is one reason to take the temp of concrete - ANSWERS-
verify conformance to a specified requirement for temp
A max temp of concrete is specified in ASTM C1064 - ANSWERS-False
The sample of concrete used for temp determination must be rodded 25 times - ANSWERS-False
Sampling by this method is required when tests are to be made to determine ____ with
specification requirements - ANSWERS-compliance
The method covers sampling from four types of mixers which are _____, _____, ____, and
_______ - ANSWERS-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 - ANSWERS-15
Portions of a composite sample shall be thoroughly remixed before beginning tests on the
sample - ANSWERS-True
Complete Solutions14
The sensor of the temperature measureing device shall be submerged a minimum of ____ in -
ANSWERS-3 (75mm)
The temperature measureing device shall have a capacity of measuring temperature of freshly
mixed conrcrete to +-_____ degrees F throught a range of _____ - ANSWERS-1(.5 degrees C),
30-120 (0-50 degrees C)
The temperature measuring device shall be calibrated____, or whenever there is a question of
_____ - ANSWERS-annually, accuracy
The temp of concrete may be measured in a wheelbarrow - ANSWERS-true
the temp of concrete may be measured in a wall form - ANSWERS-true
A composite sample of concrete is required even if the only purpose for obtaining the sample is
to determine temp. - ANSWERS-false
What must be done to the sample container prior to sampling the concrete - ANSWERS-dampen
(with water)
what must be done to the concrete surrounding the temp measuring device after the device has
submerged - ANSWERS-Press concrete around measuring device
, How long must the temp device remain in the concrete - ANSWERS-at least 2 minutes (but no
more than 5)
After temp of concrete is read, what then is required - ANSWERS-reporting of temp
the temp of concrete to be measured to the nearest ____degree F - ANSWERS-1 (.5 degree C)
According to the ASTM C1064 what is one reason to take the temp of concrete - ANSWERS-
verify conformance to a specified requirement for temp
A max temp of concrete is specified in ASTM C1064 - ANSWERS-False
The sample of concrete used for temp determination must be rodded 25 times - ANSWERS-False
Sampling by this method is required when tests are to be made to determine ____ with
specification requirements - ANSWERS-compliance
The method covers sampling from four types of mixers which are _____, _____, ____, and
_______ - ANSWERS-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 - ANSWERS-15
Portions of a composite sample shall be thoroughly remixed before beginning tests on the
sample - ANSWERS-True
