AG Mechanics CDE Practice Exam

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Prepare for the AG Mechanics CDE Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Practice this question and more.

Which of the following would not increase the tensile strength of concrete?

adding fibers
gravel
reinforcing mesh
steel rebar

The correct answer is: adding fibers

Adding fibers would not increase the tensile strength of concrete because fibers only help to control cracking and improve impact and fatigue resistance, but they do not improve the actual strength of the concrete. Gravel, reinforcing mesh, and steel rebar all work together to provide added strength and support to the concrete, increasing its tensile strength.