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This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Food Packaging Technology knowledge and support exam preparation. Choose a topic below to get started.
1. |
The _______ uses sodium sulfite and a small amount of sodium hydroxide or sodium carbonate to give slightly alkaline liquor. |
A. | Basic-sulfite semichemical (NSSC) process |
B. | Acidic-sulfite semichemical (NSSC) process |
C. | Neutral-sulfite semichemical (NSSC) process |
D. | Alkaline-sulfite semichemical (NSSC) process |
Answer» D. Alkaline-sulfite semichemical (NSSC) process | |
2. |
Semichemical method of pulping involves mechanical pulping followed by chemical pulping. |
A. | True |
B. | False |
Answer» C. | |
3. |
Several pulping processes are based on the use of sulfur dioxide as the essential component of the pulping liquor. |
A. | True |
B. | False |
Answer» B. False | |
4. |
Which of the following methods is mostly used for making glassine? |
A. | Soda process |
B. | Kraft process |
C. | Semichemical process |
D. | Sulphite process |
Answer» E. | |
5. |
‘Dissolving pulp” is obtained by which of the following methods? |
A. | Semichemical process |
B. | Sulphite process |
C. | Kraft process |
D. | Soda process |
Answer» C. Kraft process | |
6. |
Kraft Process was developed in the year _____ |
A. | 1750 |
B. | 1850 |
C. | 1879 |
D. | 1995 |
Answer» D. 1995 | |
7. |
The soda process consisted of boiling wood _____ in sodium hydroxide liquor. |
A. | 1%–2% |
B. | 3%–5% |
C. | 2%–3% |
D. | 4%–6% |
Answer» E. | |
8. |
Which of the following was the first alkaline process to be developed? |
A. | Soda process |
B. | Sulphate process |
C. | Sulphite process |
D. | Kraft process |
Answer» B. Sulphate process | |
9. |
Which of the following is also known as the white liquor? |
A. | Sodium hydroxide and Sodium hydride |
B. | Sodium sulphite and Sodium sulphate |
C. | Sodium sulphate and Sodium hydroxide |
D. | Sodium hydride only |
Answer» B. Sodium sulphite and Sodium sulphate | |
10. |
Kraft process is also known as ______ |
A. | Soda process |
B. | Sulphate process |
C. | Sulphite process |
D. | Semichemical process |
Answer» C. Sulphite process | |
11. |
Chemical pulping method uses acid for the process. |
A. | True |
B. | False |
Answer» C. | |
12. |
The kappa number of bleachable hardwood pulps is ________ |
A. | 20–30 |
B. | 30–40 |
C. | 10–20 |
D. | 18–20 |
Answer» E. | |
13. |
The kappa number of bleachable softwood pulps is _______ |
A. | 10-20 |
B. | 20-30 |
C. | 30-40 |
D. | 40-50 |
Answer» D. 40-50 | |
14. |
The primary goal of chemical pulping is to selectively remove as much lignin as possible. |
A. | True |
B. | False |
Answer» B. False | |
15. |
Chemical pulping mostly uses which of the following chemical? |
A. | Sodium Nitrate |
B. | Potassium Hydroxide |
C. | Calcium Carbonate |
D. | Sodium Hydroxide |
Answer» E. | |