One Question per Day on Synthetic Ammonia (Series 9)
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This post was last edited by 654262293 on 2016-2-12 at 17:17. I. Multiple-choice questions (each question has 4 options, of which only 1 is correct; fill in the correct option in the brackets). Continuing from Series 8: 41. The surface roughness should be indicated on the dimension line ( ). (A) Up (B) Down (C) Level (D) Middle 42. The method of obtaining surface roughness by removing material is ( ). (A) √ (B) O (C) + (D) – 43. G1\" denotes ( ) inch imperial pipe thread. (A) 1 (B) 2 (C) 3 (D) 10. In the 44.27/8TBG pipe thread, what does 27/8 represent? (A) Inner diameter of the pipe (B) Outer diameter of the pipe (C) Mean diameter of the pipe thread (D) Minor diameter of the pipe thread. 45. Pins are mainly used for connection and positioning; there are ( ) common types of them. (A) 3 (B) 4 (C) 5 (D) 2 Answer: A A A B A The above questions are taken from “Advanced Questions for Ammonia Synthesis Operators”. The scoring scale starts at 3 points, with 1 point added for each correct answer. It should be specifically noted that respondents are required to hide their answers. If the answerer’s score is not hidden, it is halved. For methods to hide posts, see: http://bbs.hcbbs.com/thread-1551107-1-1.html
Answer； A A A B A
This post was last edited by 654262293 on 2016-2-13 08:31: A A A B A
It should be specifically noted that respondents are required to hide their answers. If the answerer’s score is not hidden, it is halved. For methods to hide posts, see: http://bbs.hcbbs.com/thread-1551107-1-1.html
This post was last edited by 654262293 on 2016-2-13 at 10:07: The surface roughness should be indicated on the dimension line ((C) aligned)). 42. The method of obtaining surface roughness by removing material is ((A) √ ). 43.G1\" denotes ((A) 1) inch imperial pipe thread. In 44.27/8TBG pipe threads, 27/8 represents the (D) minor diameter of the pipe thread. 45. Pins are mainly used for connection and positioning, with ( (A) 3 ) types commonly used.
It should be specifically noted that respondents are required to hide their answers. If the answerer’s score is not hidden, it is halved. For methods to hide posts, see: http://bbs.hcbbs.com/thread-1551107-1-1.html
This post was last edited by 654262293 on 2016-2-13 at 17:39. 41. The surface roughness should be indicated on the dimension line (A). (A) Upper (B) Lower (C) Level (D) Middle 42. The method of obtaining surface roughness by removing material is (A). (A) √ (B) O (C) + (D) – 43. G1\" denotes (A) imperial pipe thread. (A) 1 (B) 2 (C) 3 (D) 10. In the 44.27/8TBG pipe thread, the 27/8 refers to (B). (A) Inner diameter of the pipe (B) Outer diameter of the pipe (C) Major diameter of the pipe thread (D) Minor diameter of the pipe thread. 45. Pins are mainly used for connection and positioning; there are (A) types commonly used. (A) 3 (B) 4 (C) 5 (D) 2