PCC Level 1 with all Correct & 100% Verified Answers |
Latest Update |Already Graded A+
The end of the temperature sensing portion of the temperature measuring device is submerged a
minimum of ___ into the freshly mixed concrete. ✔Correct Answer-3 inches
The temperature measuring device shall be capable of accurately measuring the temperature of
freshly mixed concrete to _____ throughout a range of _____ . ✔Correct Answer-1 °F , 30-120°F
The temperature measuring device shall be verified ______, or whenever there is a question of
______. ✔Correct Answer-annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. T or F? ✔Correct Answer-T
The temperature of concrete may be measured in a wall form. T or F? ✔Correct Answer-T
A composite sample of concrete is required even if the only purpose for obtaining the sample is to
determine temperature. T or F? ✔Correct Answer-F
What must be done to the sample container prior to sampling the concrete? ✔Correct Answer-
Dampened with water
What must be done to the concrete surrounding the temperature measuring device after the device
is submerged in fresh concrete? ✔Correct Answer-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? ✔Correct
Answer-2-5 minutes
After the temperature of the concrete is read, what is then required? ✔Correct Answer-Reporting
of temperature
The temperature of the concrete is reported to the nearest _____. ✔Correct Answer-1°F
According to Test Method C1064, what is one reason to take the concrete temperature? ✔Correct
Answer-Verify conformance to a specified requirement for concrete temperature.
A maximum temperature of freshly mixed concrete is specified in Test Method C1064. T or F?
✔Correct Answer-F
The sample of concrete used for temperature determination must be rodded 25 times. T or F?
✔Correct Answer-F
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. ✔Correct Answer-Compliance
This practice covers sampling from five types of equipment which are... ✔Correct Answer-
Stationary 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 ___. ✔Correct Answer-15 minutes
Portions of a composite sample shall be thoroughly remixed before beginning tests on the sample. T
or F? ✔Correct Answer-T
Start the tests for slump, temperature, and air content within how many minutes after obtaining the
final portion of the composite sample? ✔Correct Answer-5 minutes
Start molding specimens for strength tests within how many minutes after fabricating the composite
sample? ✔Correct Answer-15 minutes
The concrete sample must be protected from contamination and _____. ✔Correct Answer-Rapid
evaporation
The minimum size sample for making strength test specimens is _____. ✔Correct Answer-1 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 ✔Correct Answer-2
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. ✔Correct Answer-5
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. ✔Correct
Answer-2
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? ✔Correct Answer-F
The composite sample from a truck mixer must be obtained form the ____ portion of the batch.
✔Correct Answer-Middle
When the concrete contains aggregate larger than that permitted for a particular test method, the
sample of concrete must be ______ before making the test. ✔Correct Answer-Wet sieved
The slump test is applicable to plastic concrete with a maximum aggregate size of ____. ✔Correct
Answer-1.5"
When the concrete contains aggregate larger than allowed for the slump test, the large aggregate
must be ____. ✔Correct Answer-Removed by wet sieving the sample
The mold for making the slump test is in the shape of ____. ✔Correct Answer-The frustum of a
cone
The height of a slump mold is _____. ✔Correct Answer-12 in
The interior surface of the slump mold is allowed to have minor irregularities. T or F? ✔Correct
Answer-F
Latest Update |Already Graded A+
The end of the temperature sensing portion of the temperature measuring device is submerged a
minimum of ___ into the freshly mixed concrete. ✔Correct Answer-3 inches
The temperature measuring device shall be capable of accurately measuring the temperature of
freshly mixed concrete to _____ throughout a range of _____ . ✔Correct Answer-1 °F , 30-120°F
The temperature measuring device shall be verified ______, or whenever there is a question of
______. ✔Correct Answer-annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. T or F? ✔Correct Answer-T
The temperature of concrete may be measured in a wall form. T or F? ✔Correct Answer-T
A composite sample of concrete is required even if the only purpose for obtaining the sample is to
determine temperature. T or F? ✔Correct Answer-F
What must be done to the sample container prior to sampling the concrete? ✔Correct Answer-
Dampened with water
What must be done to the concrete surrounding the temperature measuring device after the device
is submerged in fresh concrete? ✔Correct Answer-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? ✔Correct
Answer-2-5 minutes
After the temperature of the concrete is read, what is then required? ✔Correct Answer-Reporting
of temperature
The temperature of the concrete is reported to the nearest _____. ✔Correct Answer-1°F
According to Test Method C1064, what is one reason to take the concrete temperature? ✔Correct
Answer-Verify conformance to a specified requirement for concrete temperature.
A maximum temperature of freshly mixed concrete is specified in Test Method C1064. T or F?
✔Correct Answer-F
The sample of concrete used for temperature determination must be rodded 25 times. T or F?
✔Correct Answer-F
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. ✔Correct Answer-Compliance
This practice covers sampling from five types of equipment which are... ✔Correct Answer-
Stationary 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 ___. ✔Correct Answer-15 minutes
Portions of a composite sample shall be thoroughly remixed before beginning tests on the sample. T
or F? ✔Correct Answer-T
Start the tests for slump, temperature, and air content within how many minutes after obtaining the
final portion of the composite sample? ✔Correct Answer-5 minutes
Start molding specimens for strength tests within how many minutes after fabricating the composite
sample? ✔Correct Answer-15 minutes
The concrete sample must be protected from contamination and _____. ✔Correct Answer-Rapid
evaporation
The minimum size sample for making strength test specimens is _____. ✔Correct Answer-1 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 ✔Correct Answer-2
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. ✔Correct Answer-5
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. ✔Correct
Answer-2
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? ✔Correct Answer-F
The composite sample from a truck mixer must be obtained form the ____ portion of the batch.
✔Correct Answer-Middle
When the concrete contains aggregate larger than that permitted for a particular test method, the
sample of concrete must be ______ before making the test. ✔Correct Answer-Wet sieved
The slump test is applicable to plastic concrete with a maximum aggregate size of ____. ✔Correct
Answer-1.5"
When the concrete contains aggregate larger than allowed for the slump test, the large aggregate
must be ____. ✔Correct Answer-Removed by wet sieving the sample
The mold for making the slump test is in the shape of ____. ✔Correct Answer-The frustum of a
cone
The height of a slump mold is _____. ✔Correct Answer-12 in
The interior surface of the slump mold is allowed to have minor irregularities. T or F? ✔Correct
Answer-F
