ACI logo
Focused certification exam prep
About FAQ View plans
Questions, answered

ACI practice questions - frequently asked questions

Plain answers about how ACI Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real ACI exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The ACI exam spans 7 domains: ASTM C1064/C1064M - Temperature of Freshly Mixed Hydraulic-Cement Concrete; ASTM C172/C172M - Sampling Freshly Mixed Concrete; ASTM C143/C143M - Slump of Hydraulic-Cement Concrete; ASTM C138/C138M - Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete; ASTM C231/C231M - Air Content of Freshly Mixed Concrete by the Pressure Method; ASTM C173/C173M - Air Content of Freshly Mixed Concrete by the Volumetric Method; ASTM C31/C31M - Making and Curing Concrete Test Specimens in the Field. Every practice question on this site is tagged to one of these domains.

Try 10 free questions View plans