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

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


Question:
What is the specified size of the mallet required for a typical air meter?
Answer:
1.25+/-0.5lb




Question:
Wet screening may be necessary when the mixture contains aggregate with a
nominal maximum size greater than ___________
Answer:
1.5lbs

,Question:
If the concrete sample is to be consolidated by rodding, the measure is filled
in ___________________layers.
Answer:
Three equal




Question:
If the concrete sample is to be consolidated by vibration, the measure is filled
in ______________Layers.
Answer:
2 equal




Question:
When rodding the concrete sample, what is the specified number of strokes
required for each layer?
Answer:
25

,Question:
Vibration of the concrete sample is not allowed when the slump of the
concrete exceeds ______
Answer:
3 in




Question:
In rodding the sample, how deep should the rod penetrate each layer?
Answer:
Through current layer and 1in into previous layer




Question:
After rodding each layer, what should be done to the measure before adding
another layer of concrete?
Answer:
Tap the sides of the layer 10-15 times with the mallet

, Question:
What tools may be used to strike off the top surface of the concrete following
consolidation of the final layer?
Answer:
A strike off bar or plate




Question:
The volumetric method of determining air content of concrete can be used on
concrete containing what types of aggregate?
Answer:
All types of aggregate




Question:
What are the requirements for the tamping rod used in this test method?
Answer:
steel or plastic with a hemispherical tip on one or both ends, at least 4in but
no taller than 24in