ACI Concrete Field-Testing Technician Grade I Certification Exam Prep (Latest Update 2025 / 2026) Questions & Answers | Grade A | 100% Correct

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

,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

,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

, 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