【Daily Question】February 4, 2016: In the external pressure calculation chart, coefficient A (first 50 replies + 2 wealth points; additional 3–8 wealth points for correct answers)

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To increase the popularity of the heat exchange section, a \"Question of the Day\" activity has been introduced there; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】Multiple-choice question: In the external pressure calculation chart, what is coefficient A? a. Dimensionless parameter b. Stress c. Strain d. Ratio of stress to elastic modulus Note: We will close this thread after 24 hours to announce the answers and explanations, as well as the best response (the best assistance). Other news: The competition for “Active Experts and Weekly Stars” in the Machinery Forum has begun. http://bbs.hcbbs.com/thread-1489069-1-1.html Recruitment for forum moderators and technicians in the [Machinery Forum] – applications and referrals are welcome. [Valid indefinitely] Come if you’re interested! 】http://bbs.hcbbs.com/thread-1288857-1-1.ht【Mechanical Section】In-depth guide to preventing equipment from freezing over during winter http://bbs.hcbbs.com/thread-1502793-1-1.html It’s here; we’ve finally waited for it 【Mechanical Section】Thanksgiving sharing event http://bbs.hcbbs.com/thread-1533152-1-1.html From the group: Chemical Equipment and Machinery