181hw9 - Full name Section L 5-5 pt for wrong info HW9...

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Full name:________________________________ Section: L 5 _ _ (-5 pt for wrong info) p1/2 HW9, ET181, Fall 13. Due by 6 pm on Wed, Nov 6. Use both sides of a sheet. The Grader is not responsible for missing paper; please staple your sheets. A. Multiple choice questions Question Answer Question Answer 1 6 2 7 3 8 4 9 5 10 1) In a rolling process, if a roller diameter is reduced 25%, then the required power to rotate the roller would: a) Increase 25% b) Decrease 25% c) Increase 50% d) Decrease 50% 2) Which of the following stress or strength parameters is used in the computation of rolling force: 3) The cutting force in a sheet-metal blanking operation depends on:
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