C
ACI Written Exam Questions with Correct Answers// Verified A
+ Edition.
False. Relatively dense The method of determining air content of concrete containing
lightweight aggregate is the pressure method
Is the following statement true or false? When making a test
True cylinder from concrete being used in construction, the field
technician must also measure the slump of the concrete.
While the technician is checking the slump of the concrete, there
Disregard the test and retest on
is a decided falling away or shearing off of concrete from one
another portion of the sample.
side of the sample. What should the technician do?
Determination that at least 8 Preparation of specimens for transport includes:
hours has elapsed since final set.
If the aggregate correction factor for a given source of fine
and coarse aggregate is found to be 0.2% in a pressure air
4.8%
meter, and an air content value of 5.0% is read on the gauge
of the same air meter containing concrete with the same
aggregate, what is the correct air content?
Protected from jarring, moisture Strength test specimens transported from the field to the testing
loss, and freezing laboratory must be:
Tests for slump and air content must be started within after obtaining
5 MInutes
the final
portion of the composite sample.
1 cubic foot The minimum size for samples to be used for strength test is:
Is the following statement true or false? After strike off of
False the measure used to determine density, a small quantity of
concrete may be added to correct a deficiency.
For normal strength concretes, what temperature range must
60 to 80 degrees f (16 to 27
degrees C) be maintained for test cylinders during initial curing?
Is the following statement true or false? When concrete
False contains large aggregate, the testing technician should wet-
ACI Written Exam Questions with Correct Answers// Verified A
+ Edition.
False. Relatively dense The method of determining air content of concrete containing
lightweight aggregate is the pressure method
Is the following statement true or false? When making a test
True cylinder from concrete being used in construction, the field
technician must also measure the slump of the concrete.
While the technician is checking the slump of the concrete, there
Disregard the test and retest on
is a decided falling away or shearing off of concrete from one
another portion of the sample.
side of the sample. What should the technician do?
Determination that at least 8 Preparation of specimens for transport includes:
hours has elapsed since final set.
If the aggregate correction factor for a given source of fine
and coarse aggregate is found to be 0.2% in a pressure air
4.8%
meter, and an air content value of 5.0% is read on the gauge
of the same air meter containing concrete with the same
aggregate, what is the correct air content?
Protected from jarring, moisture Strength test specimens transported from the field to the testing
loss, and freezing laboratory must be:
Tests for slump and air content must be started within after obtaining
5 MInutes
the final
portion of the composite sample.
1 cubic foot The minimum size for samples to be used for strength test is:
Is the following statement true or false? After strike off of
False the measure used to determine density, a small quantity of
concrete may be added to correct a deficiency.
For normal strength concretes, what temperature range must
60 to 80 degrees f (16 to 27
degrees C) be maintained for test cylinders during initial curing?
Is the following statement true or false? When concrete
False contains large aggregate, the testing technician should wet-
