ACI Concrete Field-Testing Technician- Grade I prep Test
Questions 100% Correct Answers latest version, top-
rated A+
The sensor of the temperature measuring device shall be
submerged a minimum of _____ in. [_____mm] into the
freshly mixed concrete.
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 _____.
1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____,
or whenever there is a question of _____.
Annually, accuracy
The temperature of concrete may be measured in a
wheelbarrow. True or False?
True
The temperature of concrete may be measured in a wall form.
True of False
True
A composite sample of concrete is required even if the only
purpose for obtaining the sample is to determine
temperature. True of False?
False
What must be done to the sample container prior to sampling
the concrete?
Dampen (with water)
What must be done to the concrete surrounding the
temperature measuring device after the device is submerged
in the fresh concrete.
Gently press the concrete around the temperature measuring
device at the surface of the concrete
, How long must the temperature measuring device remain in
the freshly mixed concrete?
At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is
required?
Reporting of temperature
The temperature of concrete is reported to the nearest _____
degrees F [_____ C]
1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the
temperature of concrete?
Verify conformance to a specified requirement for temperature of
concrete
A maximum temperature of freshly mixed concrete is
specified in ASTM C1064. True of False?
False
The sample of concrete used for temperature determination
must be rodded 25 times. True or False?
False
Sampling by this method is required when tests are to be
made to determine _____ with specification requirements.
Compliance
This method covers sampling from four types of mixtures
which are _____, _____, _____, and _____.
Stationary mixers, 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.
15
Portions of a composite sample shall be thoroughly remixed
bfore beginning tests on the sample. True of False?
True
The maximum elapsed time allowed between obtaining the
final portion of the composite sample and beginning the
Questions 100% Correct Answers latest version, top-
rated A+
The sensor of the temperature measuring device shall be
submerged a minimum of _____ in. [_____mm] into the
freshly mixed concrete.
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 _____.
1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____,
or whenever there is a question of _____.
Annually, accuracy
The temperature of concrete may be measured in a
wheelbarrow. True or False?
True
The temperature of concrete may be measured in a wall form.
True of False
True
A composite sample of concrete is required even if the only
purpose for obtaining the sample is to determine
temperature. True of False?
False
What must be done to the sample container prior to sampling
the concrete?
Dampen (with water)
What must be done to the concrete surrounding the
temperature measuring device after the device is submerged
in the fresh concrete.
Gently press the concrete around the temperature measuring
device at the surface of the concrete
, How long must the temperature measuring device remain in
the freshly mixed concrete?
At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is
required?
Reporting of temperature
The temperature of concrete is reported to the nearest _____
degrees F [_____ C]
1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the
temperature of concrete?
Verify conformance to a specified requirement for temperature of
concrete
A maximum temperature of freshly mixed concrete is
specified in ASTM C1064. True of False?
False
The sample of concrete used for temperature determination
must be rodded 25 times. True or False?
False
Sampling by this method is required when tests are to be
made to determine _____ with specification requirements.
Compliance
This method covers sampling from four types of mixtures
which are _____, _____, _____, and _____.
Stationary mixers, 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.
15
Portions of a composite sample shall be thoroughly remixed
bfore beginning tests on the sample. True of False?
True
The maximum elapsed time allowed between obtaining the
final portion of the composite sample and beginning the
