Mechanical Equipment [Daily Question] Friday, December 09, 2011
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This post was last edited by zhiyuan1100 on 2011-12-10 09:24. Please hide your replies; edits are not valid after a post has been made! Those with different views on the provided answer keys can post discussions the next day. For responses from multiple accounts under the same IP, only the first one is considered valid. This is a multiple-choice question: 5 points are awarded for answering it correctly, 3 points for selecting most of the correct options, and 2 points for the rest. Everyone who participates will receive a reward. Please hide your reply; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Multiple-choice question: In gear drives, the main reason for gear tooth breakage is ( ). A. Improper selection of gear material ； B、Poor lubrication ； C. Overload; D. Fatigue ； E. Low hardness Answer: A C D
A. Improper selection of gear material； B、Poor lubrication ； C. Overload; D. Fatigue ； E. Low hardness
Come in and learn*, my answers: B C D
This post was last edited by zhiyuan1100 on 2011-12-9 08:31. Reply 1# zhiyuan1100 ACDE
This post was last edited by zhiyuan1100 on 2011-12-9 08:36. Reply 1# zhiyuan1100 My answer is A\C\D
This post was last edited by zhiyuan1100 on 2011-12-9 08:39. I firmly support ACD...
Reply 1# zhiyuan1100 acd
Reply 1# zhiyuan1100 BCD