Heater Basics Issue 0216 (Prizes for Correct Answers)
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1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the （ ） state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than the ( ) grade specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ Correct answers: 1.B 2.B
Question 1: Annealing； Question 2: Level II
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (Ⅱ) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the (B) annealed state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) II as specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ Last edited by LTY-YYX on 2009-2-16 09:51]
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the (B) annealed state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) II as specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. B. 1092.B. This post was last edited by sky28205065 on 2009-2-16 09:23.]
Today’s question isn’t very difficult. 1 B 2 B
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
Question 1: Annealing； Question 2: Level II
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (Ⅱ) as specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ Not sure if it’s correct. Come and take a look too.
1. B (annealing) 2. B (II)
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in (B) state. A) Quenching B) Annealing C) Tempering D) Solution treatment 1092. The grade of steel forgings used for manufacturing tube sheets, flat covers, and flanges must not be lower than grade (B) specified in JB4726 and JB4728. A) Ⅰ B) Ⅱ C) Ⅲ
1. GB151 stipulates that copper and copper alloys used in the manufacture of heat exchangers should be used in the (B) state. B) Annealing 1092. Steel forgings used for manufacturing tube sheets, flat covers, and flanges must be of a grade that is not lower than grade (B) as specified in JB4726 and JB4728. B) II