Test your basic knowledge |

Paper Science Engineering Core Concepts

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What do the stages in DEDED do?






2. What two ways is kraft pulping performed?






3. What are the three types of chemical pulping?






4. What is the primary goal of bleaching?






5. What is Sulfidity?






6. What are some advantages of Semi- chemical pulping?






7. List the 3 types of Wet end machines.






8. What does PGW mean?






9. What percent of Paper and Board in the US is PRODUCED from RECYCLING?






10. What are the three big steps to Chemical recovery?






11. What is the function of the Cambium?






12. Define Paper.






13. What are some products of Chemical pulping?






14. What are the layers of wood fiber - listed from innermost to outermost?






15. What are some disadvantages of Semi- chemical pulping?






16. What is a retention additive often used?






17. What is a common wet strength aid?






18. When and where was paper invented?






19. What are some products of Recycled Pulping?






20. What are the products of Mechanical Pulping?






21. What is the H- factor? What does it tell us?






22. How is brightness measured?






23. What are some disadvantages of Chemical pulping?






24. What percentage of US production do P&W - Board - and Tissue compose?






25. How many times can a fiber be recycled before it is completely destroyed typically?






26. What part of wood largely goes into paper?






27. What is the largest paper grade in the US by weight?






28. What is black liquor?






29. What does ECF stand for?






30. The set up of Evaporators and how it saves steam economy.






31. What is Active Alkali?






32. What are the 3 main components of wood and what percentage of wood do they make up?






33. What does TMP mean?






34. What is common filler?






35. Name the primary purpose of the headbox.






36. What are some sizing additives?






37. What is the PRIMARY goal of pulping processes?






38. What is world production per year of paper/board?






39. What percent of World production does the US contribute to Paper/Board?






40. What two types of paperboard are in a typical box?






41. What do fillers do?






42. Advantages of Mechanical Pulping?






43. What percentage of the average P&W sheet is Hardwood?






44. List the 3 forces of wet end water removal.






45. What are some roles of the headbox?






46. List the 3 types of headboxes.






47. Define refining.






48. What does TCF stand for?






49. Where is black liquor produced and how is it seperated from the pulp?






50. What does SGW mean?