PCC Level 1
The end of the temperature sensing portion of the temperature measuring device is
submerged a minimum of ___ into the freshly mixed concrete. - answer3 inches
The temperature measuring device shall be capable of accurately measuring the
temperature of freshly mixed concrete to _____ throughout a range of _____ . -
answer1 °F , 30-120°F
The temperature measuring device shall be verified ______, or whenever there is a
question of ______. - answer annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. T or F? - answerT
The temperature of concrete may be measured in a wall form. T or F? - answerT
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature. T or F? - answerF
What must be done to the sample container prior to sampling the concrete? -
answerDampened with water
What must be done to the concrete surrounding the temperature measuring device after
the device is submerged in fresh concrete? - answerGently 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?
- answer2-5 minutes
After the temperature of the concrete is read, what is then required? - answerReporting
of temperature
The temperature of the concrete is reported to the nearest _____. - answer1°F
According to Test Method C1064, what is one reason to take the concrete temperature?
- answerVerify conformance to a specified requirement for concrete temperature.
A maximum temperature of freshly mixed concrete is specified in Test Method C1064. T
or F? - answerF
The sample of concrete used for temperature determination must be rodded 25 times. T
or F? - answerF
, Sampling by this practice covers procedures for obtaining representative samples, on
which tests are to be performed to determine ____ with quality requirements of the
specification under which the concrete is furnished. - answerCompliance
This practice covers sampling from five types of equipment which are... -
answerStationary mixers, paving mixers, revolving drum mixers, continuous mixers, and
open top mixers.
The elapsed time between obtaining the first and final portions of a composite sample
shall not exceed ___. - answer15 minutes
Portions of a composite sample shall be thoroughly remixed before beginning tests on
the sample. T or F? - answerT
Start the tests for slump, temperature, and air content within how many minutes after
obtaining the final portion of the composite sample? - answer5 minutes
Start molding specimens for strength tests within how many minutes after fabricating the
composite sample? - answer15 minutes
The concrete sample must be protected from contamination and _____. - answerRapid
evaporation
The minimum size sample for making strength test specimens is _____. - answer1
cubic foot
When sampling from a stationary mixer, the batch must be sampled at _____ or more
regularly spaced intervals during discharge of the middle portion of the batch - answer2
When sampling from a paving mixer, obtain samples from at least ____ different
portions of the pile and combine them into one composite sample for testing purposes. -
answer5
When sampling from a revolving drum truck mixer, concrete must be sampled at a
minimum of _____ regularly spaced intervals during discharge of the middle portion of
this batch. - answer2
Concrete samples from a truck mixer must be obtained before any water or admixtures
are added to the mixer at the jobsite. T or F? - answerF
The composite sample from a truck mixer must be obtained form the ____ portion of the
batch. - answerMiddle
When the concrete contains aggregate larger than that permitted for a particular test
method, the sample of concrete must be ______ before making the test. - answerWet
sieved
The end of the temperature sensing portion of the temperature measuring device is
submerged a minimum of ___ into the freshly mixed concrete. - answer3 inches
The temperature measuring device shall be capable of accurately measuring the
temperature of freshly mixed concrete to _____ throughout a range of _____ . -
answer1 °F , 30-120°F
The temperature measuring device shall be verified ______, or whenever there is a
question of ______. - answer annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. T or F? - answerT
The temperature of concrete may be measured in a wall form. T or F? - answerT
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature. T or F? - answerF
What must be done to the sample container prior to sampling the concrete? -
answerDampened with water
What must be done to the concrete surrounding the temperature measuring device after
the device is submerged in fresh concrete? - answerGently 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?
- answer2-5 minutes
After the temperature of the concrete is read, what is then required? - answerReporting
of temperature
The temperature of the concrete is reported to the nearest _____. - answer1°F
According to Test Method C1064, what is one reason to take the concrete temperature?
- answerVerify conformance to a specified requirement for concrete temperature.
A maximum temperature of freshly mixed concrete is specified in Test Method C1064. T
or F? - answerF
The sample of concrete used for temperature determination must be rodded 25 times. T
or F? - answerF
, Sampling by this practice covers procedures for obtaining representative samples, on
which tests are to be performed to determine ____ with quality requirements of the
specification under which the concrete is furnished. - answerCompliance
This practice covers sampling from five types of equipment which are... -
answerStationary mixers, paving mixers, revolving drum mixers, continuous mixers, and
open top mixers.
The elapsed time between obtaining the first and final portions of a composite sample
shall not exceed ___. - answer15 minutes
Portions of a composite sample shall be thoroughly remixed before beginning tests on
the sample. T or F? - answerT
Start the tests for slump, temperature, and air content within how many minutes after
obtaining the final portion of the composite sample? - answer5 minutes
Start molding specimens for strength tests within how many minutes after fabricating the
composite sample? - answer15 minutes
The concrete sample must be protected from contamination and _____. - answerRapid
evaporation
The minimum size sample for making strength test specimens is _____. - answer1
cubic foot
When sampling from a stationary mixer, the batch must be sampled at _____ or more
regularly spaced intervals during discharge of the middle portion of the batch - answer2
When sampling from a paving mixer, obtain samples from at least ____ different
portions of the pile and combine them into one composite sample for testing purposes. -
answer5
When sampling from a revolving drum truck mixer, concrete must be sampled at a
minimum of _____ regularly spaced intervals during discharge of the middle portion of
this batch. - answer2
Concrete samples from a truck mixer must be obtained before any water or admixtures
are added to the mixer at the jobsite. T or F? - answerF
The composite sample from a truck mixer must be obtained form the ____ portion of the
batch. - answerMiddle
When the concrete contains aggregate larger than that permitted for a particular test
method, the sample of concrete must be ______ before making the test. - answerWet
sieved
