【Daily Question】Theoretical Foundation 2020.05.07
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Multiple-choice question: Under the same material conditions, as flexibility increases, ( ). (A) The critical stress of slender rods decreases, but not that of medium-length rods. (B) The critical stress of medium-length rods decreases, but not that of slender rods. (C) The critical stress of both slender rods and medium-length rods decreases. (D) The critical stress of neither slender rods nor medium-length rods decreases. Answer: C Hint: Extra rewards will be given to those who can explain the solution process; the answer can be found in the response!
(C) The critical stresses of both slender and medium-long rods are reduced
(C) The critical stresses of both slender and medium-long rods are reduced