[Soda ash knowledge] Daily question (22) 2009.10.25
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Please hide the reply. If you do not hide it, you will not be graded in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Edited posts are not graded. (The title of this issue is taken from page 64 of "Technical Worker Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book is available for download in the soda ash information sharing area. http://bbs.hcbbs.com/thread-13140-1-2.html ) Multiple choice question 1. The β value in the joint alkali production process refers to ( ). A. FNH3/Na+ B. CNH3/Na+ C. TNH3/Na+ 2. The γ value in the joint alkali production process refers to ( ). A. Na+/FNH3 B, Na+/CNH3 C, Na+/TNH3 3. The control of α value increases with the decrease of crystallization temperature ( ). A. Increase B. No change C. Decrease 4. The control range of the α value in operation is ( ) A. 1.02～1.12 B. 2.15～2.35 C. 1.5～1.8 5. The control range of β value in operation is ( ). A. 1.02～1.12 B. 2.15～2.35 C. 1.5～1.8
1.C 2.B 3.A 4.B 5.B
1.a2.b3.c4.a5.b
1.A 2.B 3.C 4.A 5.B
1. The β value in the joint alkali production process refers to (A). A. FNH3/Na+ B, CNH3/Na+ C, TNH3/Na+ 2. The γ value in the joint alkali production process refers to (B). A. Na+/FNH3 B, Na+/CNH3 C, Na+/TNH3 3. The control of α value increases with the decrease of crystallization temperature (C). A. Increase B. No change C. Decrease 4. The control range of the α value in operation is (A) A. 1.02～1.12 B. 2.15～2.35 C. 1.5～1.8 5. The control range of β value in operation is (B). A. 1.02～1.12 B. 2.15～2.35 C. 1.5～1.8