【Daily Question】【Static Equipment AC Version...Question 148】May 28, 2019 Multiple-choice question...Supplement

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bg4.png【Daily Question】【AC Version for Static Equipment...Question 148】 May 28, 2019 Multiple-choice questions... supplements ..................................................... Please fill in the answers (single choice, single choice) in order. Examine the knowledge points related to heat exchangers in GB/T 151-2014. Reward rules: 3 wealth points for participation, and 5 wealth points for a correct answer. ........................................................................... 1. For carbon steel or low-alloy steel heat exchangers whose medium is compressed air, water vapor, or water, the corrosion margin shall be not less than ( ) mm. A, 2 ； B, 1.5 ； C, 1 ； D, 0.5 ； ---------------------2. For components subjected to uniform corrosion or wear, the corrosion allowance should be determined based on the expected design service life and the corrosion rate (as well as wear rate) of the metal material by the surrounding medium ； Furthermore, when the components are subject to varying degrees of corrosion, different corrosion margins can be employed. （）A、Correct ； B. Incorrect ； --------------------- Answer: (Tests knowledge of heat exchangers per GB/T 151-2014) 1. C 2. A