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This post was last edited by sunjl1981 on 2013-1-6 22:47. In order to encourage members to actively participate, we will give 3 wealth rewards for each correct answer. If there is a calculation process, write down the corresponding calculation process or explain certain reasons and give an additional 3 to 6 wealth rewards. I believe the points won’t be too much, just a prize. The key is everyone's active participation and common progress. (Note: This post can only be rated by the moderator, other ratings are invalid) Multiple choice questions 1. If the oxygen content in hydrogen reaches ( ), there is a danger of explosion. A.4.5%~80% B.4.5%~95% C.2.5%~95% D.2.5%~80% 2. P in the symbol PID of the automatic instrument system means ( ) A. Proportional adjustment B. Integral adjustment C. Differential adjustment D. Program adjustment 3. In the ion membrane electrolyzer, ( ) has a great influence on the current distribution on the ion membrane and the voltage drop of the ion membrane A. The shape of the anode surface B. The shape of the cathode surface C. The shape of the ion membrane Please hide your reply. In principle, you will not be rated if you do not hide it. Please click here for the hiding method.: Hidden method. If you answer questions from the same IP address, only the first answer is valid. In addition, please be careful when posting, editing is invalid! Thank you all! Reference answer: 1.B 2.A 3.A # hcbbs
1. When the oxygen content in hydrogen reaches (B), there is a risk of explosion. A.4.5%~80% B.4.5%~95% C.2.5%~95% D.2.5%~80% 2.P in the PID diagram represents (A) A. Proportional adjustment B. Integral adjustment C. Differential adjustment D. Program adjustment 3. (A ) has a great influence on the current distribution on the ion membrane and the pressure drop of the ion membrane A. The shape of the anode surface B. The shape of the cathode surface C. The shape of the ion membrane
1.B 2.A I is the integral, D is the differential O(∩_∩)O~ 3.A 1# Yinuo Zhang
1. When the oxygen content in hydrogen reaches (D), there is a danger of explosion. A.4.5%~80% B.4.5%~95% C.2.5%~95% D.2.5%~80% 2. P in the automatic control instrument system symbol PID means (A) A. Proportional adjustment B. Integral adjustment C. Differential adjustment D. Program adjustment 3. In the ion membrane electrolyzer, ( C ) has a great influence on the current distribution on the ion membrane and the pressure drop of the ion membrane A. The shape of the anode surface B. The shape of the cathode surface C. The shape of the ion membrane
Question 1 is: Question A 2 is: Question C 3 is: C