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Natural fibre products Quiz 6

Theme: Natural Fibre Products NFP Quiz 6 Natural fibre products Quiz 6

Natural fibre products Quiz 6

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Question 1 of 10

1. Question
1. What is the main purpose of drying natural fibre products?
- A) To increase their weight
- B) To change their color
- C) To remove residual water
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Question 2 of 10

2. Question
2. What are the main product groups where drying is needed?
- A) Metals, Plastics, Ceramics
- B) Textiles, Leather, Rubber
- C) Wood and timber, Market pulp, Paper and board webs
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Question 3 of 10

3. Question
3. What is the traditional method of drying wood called?
- A) Air drying
- B) Kiln drying
- C) Microwave drying
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Question 4 of 10

4. Question
4. What is the main advantage of kiln drying over air drying?
- A) It is cheaper
- B) It requires less space
- C) It is quicker and more controllable
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Question 5 of 10

5. Question
5. What is the typical moisture content of wood after drying for construction use?
- A) 0.5
- B) 18 %
- C) 0.05
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Question 6 of 10

6. Question
6. What is the most common drying method in paper and board manufacture?
- A) Air drying
- B) Contact drying with multicylinder drying section
- C) Microwave drying
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Question 7 of 10

7. Question
7. What is the main purpose of surface sizing in paper production?
- A) To add color to the paper
- B) To apply a protective layer on the paper surface
- C) To increase the paper's weight
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Question 8 of 10

8. Question
8. What are the three drying methods commonly used for pigment coatings on paper?
- A) IR drying, Air flotation drying, Cylinder drying
- B) Microwave drying, Freeze drying, Vacuum drying
- C) Air drying, Sun drying, Oven drying
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Question 9 of 10

9. Question
9. What is the main advantage of using spoiler bars in cylinder drying?
- A) They reduce the drying time
- B) They improve heat transfer by creating turbulence in the condensate film
- C) They increase the paper's thickness
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Question 10 of 10

10. Question
10. What is the main factor influencing the design of steam and condensate systems in paper machines?
- A) Available steam pressure
- B) Color of the paper
- C) Type of ink used
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This page has been updated 07.01.2026

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