sACI Certification Practice Exam
Comprehensive Questions (Frequently
Tested) with Verified Answers Graded
A+
T/F: The method of determining air content of concrete containing lightweight aggregate is the
pressure method - Answer: False
T/F: When making a test cylinder from concrete being used in construction, the field technician
must also measure the slump of the concrete. - Answer: True
While the technician is checking the slump of the concrete, there is a decided falling away or
shearing off of the concrete from one side of the sample. What should the technician do? -
Answer: Disregard the test and retest on another portion of the sample
Preparation of specimens for transport includes: - Answer: Determination that at least 8 hours
has elapsed since final set
If the aggregate correction factor for a given source of fine and coarse aggregate is found to
be .2% in a pressure air meter, and an air content value of 5% is read on the gage of the same
air meter containing concrete with the same aggregate, what is the correct air content? -
Answer: 4.8%
Strength test specimens transported from the field to the testing laboratory must be - Answer:
Protected from jarring, Protected from moisture loss, and Protected from freezing
Comprehensive Questions (Frequently
Tested) with Verified Answers Graded
A+
T/F: The method of determining air content of concrete containing lightweight aggregate is the
pressure method - Answer: False
T/F: When making a test cylinder from concrete being used in construction, the field technician
must also measure the slump of the concrete. - Answer: True
While the technician is checking the slump of the concrete, there is a decided falling away or
shearing off of the concrete from one side of the sample. What should the technician do? -
Answer: Disregard the test and retest on another portion of the sample
Preparation of specimens for transport includes: - Answer: Determination that at least 8 hours
has elapsed since final set
If the aggregate correction factor for a given source of fine and coarse aggregate is found to
be .2% in a pressure air meter, and an air content value of 5% is read on the gage of the same
air meter containing concrete with the same aggregate, what is the correct air content? -
Answer: 4.8%
Strength test specimens transported from the field to the testing laboratory must be - Answer:
Protected from jarring, Protected from moisture loss, and Protected from freezing
