Junior Mechanical Interview Questions

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We were sitting in the third floor of a 16 floor building. After asking me about my experiences with working within a group the interviewer suddenly asked me, "How many pennies would it take to stack as high as this building?"
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Mechanical Engineer Intern I

Interviewed at Valero

4.2
Jul 10, 2014

We were sitting in the third floor of a 16 floor building. After asking me about my experiences with working within a group the interviewer suddenly asked me, "How many pennies would it take to stack as high as this building?"

Between the following materials, steel, magnesium, titanium, copper, aluminum, which is the most stiff and why? What does the stress strain plot look like for steel versus aluminum? What should you do if you want to increase the force until fracture? What would the stress strain plot look like if you took a material went until ultimate strength and then went back to zero stress and then went back to ultimate strength?

Between the following materials, steel, magnesium, titanium, copper, aluminum, which is the most stiff and why? What does the stress strain plot look like for steel versus aluminum? What should you do if you want to increase the force until fracture? What would the stress strain plot look like if you took a material went until ultimate strength and then went back to zero stress and then went back to ultimate strength?

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