ACI Field Grade 1 Practice Test QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
The temperature measuring device shall be cable of accurately measuring the temperature of freshly
mixed concrete to 1°F throught a range of____________________________. - (answer)30 - 120°F
It is acceptable to measure the temperature of freshly mixed concrete in the forms provided? -
(answer)The sensor of the temperature measuring device has at least 3 in. of cover in all directions.
Composite samples are required even if the only purpose for obtaining the sample is to determine
temperature. - (answer)False
The temperature measuring device is left in the freshly mixed concrete for at least _______________
but not more than 5 minutes. - (answer)2 minutes
Test Method C1064/C1064M specifies a maximum temperature of freshly mixed concrete. -
(answer)False
The elapsed time between obtaining the first and final portions of a composite sample shall not exceed
____________________. - (answer)15 minutes
Individual samples shall be combined and remixed with a shovel the minimum amount necessary to
ensure uniformity. - (answer)True
The following test must be started within 5 minutes after obtaining the final portion of the composite
sample: - (answer)Slump, Temperature, Air Content
The concrete sample must be protected from? - (answer)Contamination & Evaporation
When strength specimens are to be made, the minimum sample size is __________________. -
(answer)1.0 ft3
, ACI Field Grade 1 Practice Test QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Portions of the composite should be taken from the _______________of the batch discharge. -
(answer)Middle
A composite sample taken from a paving mixer consists of _______________ individual samples taken
from different portions of the pile. - (answer)Five
The process of removing aggregate larger than a designated size from the fresh concrete by sieving it on
a sieve of the designated size is know as? - (answer)Wet Sieving
The slump test is considered applicable to plastic concrete having a coarse aggregate up to
____________________. - (answer)1 1/2 in.
The height of the slump mold is_________________. - (answer)12 inches
The interior surface of the slump mold shall be relatively smooth and free from projections. -
(answer)True
The tamping rod used for the slump test shall have a minimum length of ____________ and a maximum
length of _______________. - (answer)16 in. & 24 in.
The slump mold is filled in ___________ layers of _______________. - (answer)3, equal volume
If the concrete subsides below the top of the slump mold while rodding the top layer, the test is invalid.
- (answer)False
Slump is determined by measuring the vertical distance between? - (answer)The top of the mold and the
original displaced center of the top surface of the specimen.
Slump is reported to the nearest? - (answer)1/4 in.
ANSWERS) |ALREADY GRADED A+
The temperature measuring device shall be cable of accurately measuring the temperature of freshly
mixed concrete to 1°F throught a range of____________________________. - (answer)30 - 120°F
It is acceptable to measure the temperature of freshly mixed concrete in the forms provided? -
(answer)The sensor of the temperature measuring device has at least 3 in. of cover in all directions.
Composite samples are required even if the only purpose for obtaining the sample is to determine
temperature. - (answer)False
The temperature measuring device is left in the freshly mixed concrete for at least _______________
but not more than 5 minutes. - (answer)2 minutes
Test Method C1064/C1064M specifies a maximum temperature of freshly mixed concrete. -
(answer)False
The elapsed time between obtaining the first and final portions of a composite sample shall not exceed
____________________. - (answer)15 minutes
Individual samples shall be combined and remixed with a shovel the minimum amount necessary to
ensure uniformity. - (answer)True
The following test must be started within 5 minutes after obtaining the final portion of the composite
sample: - (answer)Slump, Temperature, Air Content
The concrete sample must be protected from? - (answer)Contamination & Evaporation
When strength specimens are to be made, the minimum sample size is __________________. -
(answer)1.0 ft3
, ACI Field Grade 1 Practice Test QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Portions of the composite should be taken from the _______________of the batch discharge. -
(answer)Middle
A composite sample taken from a paving mixer consists of _______________ individual samples taken
from different portions of the pile. - (answer)Five
The process of removing aggregate larger than a designated size from the fresh concrete by sieving it on
a sieve of the designated size is know as? - (answer)Wet Sieving
The slump test is considered applicable to plastic concrete having a coarse aggregate up to
____________________. - (answer)1 1/2 in.
The height of the slump mold is_________________. - (answer)12 inches
The interior surface of the slump mold shall be relatively smooth and free from projections. -
(answer)True
The tamping rod used for the slump test shall have a minimum length of ____________ and a maximum
length of _______________. - (answer)16 in. & 24 in.
The slump mold is filled in ___________ layers of _______________. - (answer)3, equal volume
If the concrete subsides below the top of the slump mold while rodding the top layer, the test is invalid.
- (answer)False
Slump is determined by measuring the vertical distance between? - (answer)The top of the mold and the
original displaced center of the top surface of the specimen.
Slump is reported to the nearest? - (answer)1/4 in.
