Natural fibre products Quiz 30
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Question 1 of 10
1. Question
1. What are the three main visual properties that define the optics of paper?
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Question 2 of 10
2. Question
2. Why is opacity an important property in paper products, especially for printed materials?
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Question 3 of 10
3. Question
3. Which theory is commonly used to determine the basic optical properties of paper surfaces, such as light scattering and absorption?
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Question 4 of 10
4. Question
4. True or False: The elastic modulus of paper is always the same in tension and compression.
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Question 5 of 10
5. Question
5. What is the typical range of elastic modulus values for paper, in GPa?
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Question 6 of 10
6. Question
6. What is the significance of the Poisson ratio in paper mechanics?
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Question 7 of 10
7. Question
7. Which direction in machine-made paper typically shows a higher elastic modulus?
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Question 8 of 10
8. Question
8. What effect does drying shrinkage have on the elastic modulus of paper?
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Question 9 of 10
9. Question
9. True or False: The load-elongation curve of paper is always linear up to the point of failure.
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Question 10 of 10
10. Question
10. Which two factors influence the shape of the load-elongation curve in paper?
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