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