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This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Pulp & Paper Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
1. |
__________ lignin is the residue extracted after the total acid hydrolysis of carbohydrate portion of wood. It’s a gravimetric method for determining lignin directly in woody materials. |
A. | a)Klason |
B. | b)Karlson |
C. | c)Klux |
D. | d)Kurl |
Answer» B. b)Karlson | |
2. |
Chlorine number = __________ x Roe number. |
A. | a)0.10 |
B. | b)0.20 |
C. | c)0.80 |
D. | d)0.90 |
Answer» E. | |
3. |
The __________ is a test method just like that of Roe, except the CIO2 is generated in sit by acidification of sodium hypochlorite. |
A. | a)Klason lignin |
B. | b)Kappa number |
C. | c)Chlorine number |
D. | d)Roe number |
Answer» D. d)Roe number | |
4. |
The __________ is a measurement of lignin content by the number of grams of gaseous Cl2 consumed by 100 grams dry pulp at 25 °C in 15 minutes. |
A. | a)Row number |
B. | b)Roe number |
C. | c)Chloe number |
D. | d)Christ number |
Answer» C. c)Chloe number | |
5. |
A 40 ml K no. of 10 corresponds to a kappa no. of 14.5, 20 corresponds to 30.4 kappa number, and 30 corresponds to __________ kappa number. |
A. | a)64.1 |
B. | b)32.1 |
C. | c)85.1 |
D. | d)95.1 |
Answer» B. b)32.1 | |
6. |
Lignin is easily measured indirectly by measuring the amount of __________ consumed by lignin in a sample of pulp of known mass. |
A. | a)Anti oxidant |
B. | b)Oxidant |
C. | c)Pulp |
D. | d)Poison |
Answer» C. c)Pulp | |