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Natural fibre products Quiz 10

Theme: Natural Fibre Products NFP Quiz 10 Natural fibre products Quiz 10

Natural fibre products Quiz 10

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Question 1 of 10

1. Question
1. What is the primary function of the press section in a paper machine?
- A) A. Remove water from the web
- B) B. Improve color quality
- C) C. Add coatings to the paper
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Question 2 of 10

2. Question
2. Plain roll press nips are still widely used today due to their superior water removal capabilities.
- A) A. True
- B) B. Only in low-speed machines
- C) C. False
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Question 3 of 10

3. Question
3. Which of the following is a drawback of suction press rolls?
- A) A. Reduced noise levels
- B) B. Enhanced water removal
- C) C. Shadow marking
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Question 4 of 10

4. Question
4. What is the main advantage of using double-felted nips in the press section?
- A) B. They extend nip time for better water removal
- B) A. They increase the nip load, thereby increasing water removal
- C) C. They eliminate the need for steam boxes
Correct

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Question 5 of 10

5. Question
5. What is the purpose of a steam box in a press section?
- A) B. To preheat the web before pressing
- B) A. To lubricate the rolls
- C) C. To dry the paper
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Question 6 of 10

6. Question
6. Granite rolls are still the preferred material for center rolls in high-speed machines.
- A) A. Only for board grades
- B) B. False
- C) C. True
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Question 7 of 10

7. Question
7. What material has largely replaced wool in modern press felts?
- A) A. Cotton
- B) B. Polyamide
- C) C. Polyester
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Question 8 of 10

8. Question
8. What is the effect of thinner batt fibers in press felts on water removal?
- A) A. They increase rewetting
- B) B. They reduce water removal
- C) C. They improve water removal
Correct

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Question 9 of 10

9. Question
9. What is a key benefit of wide-nip or shoe presses?
- A) A. Reduced press load
- B) B. Improved pressing time and moisture profile control
- C) C. Elimination of felt usage
Correct

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Question 10 of 10

10. Question
10. The post-nip rewetting effect increases with longer contact time between the web and felt.
- A) A. False
- B) B. Only in double-felted nips
- C) C. True
Correct

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This page has been updated 07.01.2026

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