ACI Concrete Field-Testing Technician Grade I Certification Exam Prep (Latest Update 2025 / 2026) Questions & Answers | Grade A | 100% Correct
Question:
What type of alcohol and concentration must be used in this test method?
Answer:
Isopropyl, 70% by volume (65% by weight)
Question:
A mallet weighing ____ must be used to tap the sides of the bowl after rodding each layer
Answer:
1.25 +-0.5 lb
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Question:
The sample of concrete used in the test method must be obtained in accordance with what ASTM Practice?
Answer:
C172
Question:
The maximum size aggregate allowed in this test method is ___
Answer:
1.5 inch
Question:
If the concrete sample contains aggregate larger than that allowed for this test, the sample must be ____
Answer:
Wet sieved over a 1 in sieve
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Question:
When filling the measuring bowl of the air meter, the concrete must be placed in ___ layers of equal volume
Answer:
2
Question:
What is the specified number of strokes required when rodding each layer of concrete?
Answer:
25
Question:
It is necessary to tap the sides of the measuring bowl after each layer has been rodded
Answer:
True
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Question:
The initial quantity of water and alcohol added to the air meter can be poured directly into the neck of the top section of the air meter
Answer:
False, the funnel must be used
Question:
Upon final filling of the air meter with water, what part of the liquid level should be adjusted to the zero
Answer:
Bottom of the meniscus
Question:
How long should the air meter be inverted and agitated?
Answer:
No more than 5 seconds at a time, but must be repeated for a minimum of 45 seconds to free concrete from the base
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