quiz4 - different number choose the answer that's closest...

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Question 1 2 out of 2 points Given the following tensile testing data provided for several grades of steel, which steel has a tensile strength of ~68 ksi and which steel has a yield strength of ~68 ksi. Note that the axes scales are given in ksi and %. Answer Selected Answer: A588 has a tensile strength 68 ksi A709 (70W) has a yield strength 68 ksi Correct Answer: A588 has a tensile strength 68 ksi A709 (70W) has a yield strength 68 ksi Response Feedback:
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Question 2 2 out of 2 points Determine the approximate the elastic modulus of A36 steel. As each of us is likely to get a slightly
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Unformatted text preview: different number, choose the answer that's closest to the number you come up with. Note that the axes scales are given in ksi and %. T he strain scale is given in % on this curve so 5% on this curve is equivalent to 0.05. Answer Selected Answer: 3.7 x 10 Correct Answer: 3.7 x 10 Response Feedback: Correct The elastic modulus is given by the slope of the σ-ε curve under elastic conditions. Using any two points on the curve (I used 0 and 1% for strain and the corresponding points 0 and ~37 ksi for stress), we can determine the slope mathematically;...
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This document was uploaded on 10/26/2011 for the course ENGL 250 at Iowa State.

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quiz4 - different number choose the answer that's closest...

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