How to make paper from recycled materials
  • 1. What is the primary ingredient in recycled paper?
A) Plastic
B) Wood pulp
C) Waste paper
D) Cotton fibers
  • 2. What is the first step in recycling paper?
A) Collecting waste paper
B) Pressing the paper
C) Bleaching the pulp
D) Adding dyes
  • 3. What process is used to break down the paper into pulp?
A) Pulping
B) Fermenting
C) Digesting
D) Heating
  • 4. What is often used in pulping to help break down the paper?
A) Acid
B) Water
C) Sugar
D) Oil
  • 5. What process removes inks and dyes from the pulp?
A) De-inking
B) Washing
C) Filtering
D) Bleaching
  • 6. What is added to the pulp to make it whiter?
A) Clay
B) Glue
C) Starch
D) Bleach
  • 7. What is the purpose of screening the pulp?
A) Dissolve the pulp
B) Remove contaminants
C) Thicken the pulp
D) Add color
  • 8. What machine is used to spread the pulp into a thin sheet?
A) Press
B) Paper machine
C) Spinning wheel
D) Loom
  • 9. What process removes water from the paper sheet?
A) Pressing
B) Heating
C) Cooling
D) Freezing
  • 10. What is done to the paper to make it smooth and dry?
A) Soaking
B) Stretching
C) Drying
D) Folding
  • 11. What is the final step in the paper making process?
A) Cutting
B) Stacking
C) Folding
D) Rolling
  • 12. Why is recycling paper important?
A) Makes paper heavier
B) Makes paper stronger
C) Saves trees
D) Makes paper cheaper
  • 13. What type of paper is hardest to recycle?
A) Cardboard
B) Newspaper
C) Coated paper
D) Office paper
  • 14. What is the benefit of using recycled paper?
A) Increases carbon emissions
B) Requires more energy
C) Reduces landfill waste
D) Is always more expensive
  • 15. Can all types of paper be recycled?
A) Only colored paper
B) Only white paper
C) Yes
D) No
  • 16. Which of these is NOT a type of paper that can be recycled?
A) Cardboard
B) Magazines
C) Newspaper
D) Waxed paper
  • 17. What is the purpose of the clarification process during paper recycling?
A) Make the paper stronger
B) Add coloring
C) Make the paper smoother
D) Remove any remaining inks or contaminants
  • 18. Which chemical is commonly used for bleaching recycled paper pulp?
A) Sulfuric acid
B) Hydrochloric acid
C) Hydrogen peroxide
D) Nitric acid
  • 19. What is the function of the headbox in a paper machine?
A) Cuts the paper
B) Distributes the pulp evenly onto the wire mesh
C) Dries the paper
D) Presses the paper
  • 20. What is the term for the woven mesh that the paper pulp is spread onto in the paper machine?
A) Wire
B) Screen
C) Cloth
D) Belt
  • 21. What affects the grade/quality of recycled paper?
A) Fiber length
B) Color
C) Weight
D) Water content
  • 22. How many times can paper be recycled on average?
A) 10-12 times
B) 5-7 times
C) 1-2 times
D) Indefinitely
  • 23. Which certification mark indicates that paper contains recycled content?
A) Rainforest Alliance Certified
B) Forest Stewardship Council (FSC)
C) Recycled Content Logo
D) Energy Star
  • 24. What is the main use of brown paper made from recycled materials?
A) Packaging
B) Drawing
C) Printing
D) Writing
  • 25. What type of adhesive is best to use with recycled paper?
A) Super glue
B) Water-based glue
C) Epoxy
D) Hot glue
  • 26. What is the primary source of energy used in paper recycling mills?
A) Electricity
B) Solar
C) Natural gas
D) Coal
  • 27. What is the term for paper that cannot be recycled?
A) Pre-Consumer Waste Paper
B) Virgin Paper
C) Contaminated Paper
D) Post-Consumer Waste Paper
  • 28. What is the purpose of adding starch to recycled paper during the paper making process?
A) Adds a smooth finish
B) Increases strength
C) Improves color
D) Enhances water resistance
  • 29. Which of the following industries is NOT a significant consumer of recycled paper?
A) Automotive
B) Publishing
C) Printing
D) Packaging
  • 30. What is the impact of recycling paper on water usage?
A) Doubles water usage
B) Decreases water usage
C) Increases water usage
D) Has no impact on water usage
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