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Food Packaging Practice Test: Paper and Paper Based Packaging Materials
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Avg score: 70% Most missed: “Several pulping processes are based on the use of sulfur dioxide as the essentia…”
The basics of paper making are: Pulping: The first step in papermaking, where raw materials like wood chips and recycled paper are turned into pulp. There are two types of pulping: mechanical and chemical. Bleaching: An essential step that removes color from the pulp. Bleached pulp is brighter, softer, and cleaner than unbleached pulp. Drying: A critical step that removes water from the pulp to create a finished product. Efficient drying methods can reduce the time and energy needed to produce paper. Coating: A surface treatment that improves the gloss, smoothness, whiteness, and opacity... Show more
Food Packaging Practice Test: Paper and Paper Based Packaging Materials
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25 Questions

1. ________ is the term used for bleaching of mechanical pulp.
2. Which of the following is often used for packaging butter and similar fatty foods?
3. ________ mainly determines the paper properties.
4. ________ is prepared by further treating greaseproof paper in a supercalender.
5. The object of beating is _________ of the fibers by assisting them to imbibe water.
6. Hardwood has more amount of cellulose and hemicellulose present in it.
7. ______ is the natural binding constituent of the cells of wood and plant stalks.
8. The kappa number of bleachable hardwood pulps is ________
9. Stock (fibrous material) is prepared by which of the following processes?
10. _________ is generally used as an interleaver between slices of food such as meat or pastry.
11. Pigments are added at the wet end of the paper machine and serve to fill the sheet.
12. Paper from mechanical pulp is stronger than that from chemical pulp.
13. What is used for pretreatment in Chemithermomechanical pulping?
14. Which of the following is the primary function of digestion?
15. Several pulping processes are based on the use of sulfur dioxide as the essential component of the pulping liquor.
16. Semichemical method of pulping involves mechanical pulping followed by chemical pulping.
17. If ________ is present in paper, it deteriorates in color and strength quite rapidly.
18. Hardwood fibers are longer than that of softwood fibers.
19. Usually, there is less variation in paper properties in the MD than in the CD.
20. The yield of chemical pulp is more than that of mechanical pulp.
21. Waxed papers provide a barrier against _________
22. Paper greater than _______ g/m2 is called paperboard.
23. _______ softens at 160°C.
24. The term TCF in chlorine bleaching stands for_________bleaching.
25. ________ has no fiber forming properties.