Mechanical Equipment [Daily Question] 2011.10.26
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This post was last edited by Black gold on 2011-11-3 10:42. Please hide your replies; editing after posting is invalid! Those with different views on the provided answer keys can post discussions the next day. For multiple accounts under the same IP, only the first response counts as valid. This is a multiple-choice question; 5 points are awarded for correct answers, and everyone who participates will receive a reward. Please hide your replies. The method for hiding replies is: http://bbs.hcbbs.com/thread-492556-1-1.html. Multiple-choice question: To improve the resistance of gear transmissions to pitting, which of the following methods can be considered? A. Use closed gears B. Increase the drive center distance C. Reduce the number of gear teeth D. Increase the hardness of the tooth surfaces Answer: B, D
Reply 1# A Pot of Aromatic Tea AC
Reply to 1# A Pot of Fragrant Tea ACD
Reply 1# A Pot of Aromatic Tea ABCD