【Daily Question】【AC Version for Static Equipment...Question 108】April 18, 2019 – Revised multiple-choice questions...Everything is going well

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bg4.png【Daily Question】【AC Version for Static Equipment...Question No. 108】 April 18, 2019. Revised multiple-choice question... Everything is going well. ........................................................................... The question is taken from the standard NB/T 47041-2014 «Tower-Type Vessels». Please point out any inaccuracies in the revisions; if you have any good suggestions, feel free to leave a reply – rewards will be given generously. ........................................................................... Answers (multiple choice, multiple choice, multiple choice) please fill in in order. Reward rules: 1 wealth for participation, 3 wealth for each correct answer, up to a maximum of 10 wealth. ........................................................................... 1. When the inner diameter of a single-tower container is DN800~DN1600, the dimensions di and the number of circular inspection hole structures provided in the skirt are respectively (). A, φ400, one ； B, φ400, two ； C, φ450, one ； D, φ450, two ； --------------------- 2. When the inner diameter of a single-tower container is DN800~DN1600, the radius ri of the elliptical inspection hole structure in the skirt, as well as the length and number of the straight sections, are respectively (). A, R225, 450, one ； B, R225, 450, two ； C, R200, 400, one ； D, R200, 400, two ； --------------------- 3. Inspection holes shall be provided in the skirt base, and the connection between the reinforcement pipe of the inspection hole and the skirt base shell shall adopt a fully penetrated welding structure. ( ) A. Correct ； B. Incorrect ； --------------------- Answer: (Tests the structure of tower-type containers: inspection holes) 1. C 2. C 3. A