When sampling from a revolving drum truck mixer, concrete must be sampled at a minimum of _____ regularly spaced intervals during discharge of the middle portion of this batch.

Study for the American Concrete Institute (ACI) Exam. Utilize flashcards and multiple choice questions with hints and detailed explanations. Prepare and excel in your certification exam!

Multiple Choice

When sampling from a revolving drum truck mixer, concrete must be sampled at a minimum of _____ regularly spaced intervals during discharge of the middle portion of this batch.

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