How to tan leather - Quiz
  • 1. What is the primary purpose of tanning leather?
A) To remove all hair
B) To prevent decomposition
C) To change its color
D) To make it shiny
  • 2. Which of these is NOT a common tanning agent?
A) Sugar
B) Aluminum salts
C) Chromium salts
D) Vegetable tannins
  • 3. What is the first step in most tanning processes?
A) Curing
B) Tanning
C) Dyeing
D) Finishing
  • 4. What does 'curing' primarily involve?
A) Stretching the leather
B) Preserving the hide
C) Adding color
D) Softening the leather
  • 5. Which curing method uses salt?
A) Pickling
B) Air drying
C) Smoking
D) Salt curing
  • 6. What is 'deliming' in leather tanning?
A) Adding lime
B) Removing lime
C) Adding fat
D) Removing hair
  • 7. What is a common vegetable tanning material?
A) Petroleum
B) Oak bark
C) Plastic
D) Cement
  • 8. Which type of tanning is known for its speed and stability?
A) Chrome tanning
B) Vegetable tanning
C) Oil tanning
D) Brain tanning
  • 9. What color is leather typically after chrome tanning?
A) Blue-grey
B) Black
C) Brown
D) Red
  • 10. What is 'fatliquoring' used for?
A) Hardening the leather
B) Adding color to the leather
C) Waterproofing the leather
D) Softening the leather
  • 11. What is staking in leather making?
A) Mechanical softening
B) Applying a finish
C) Removing the hair
D) Applying dyes
  • 12. What does the term 'crust' refer to in leather production?
A) Partially dried leather
B) Finished leather
C) Raw hide
D) Leather scraps
  • 13. Which of these is a type of fish oil used in tanning?
A) Motor oil
B) Cod liver oil
C) Olive oil
D) Vegetable oil
  • 14. What is the purpose of 'sammying'?
A) Reducing moisture
B) Removing wrinkles
C) Adding color
D) Adding moisture
  • 15. What is a common method of applying dyes to leather?
A) Spray painting
B) Pouring
C) Airbrushing
D) Drum dyeing
  • 16. What does 'full grain' leather refer to?
A) Bottom layer of hide
B) Top layer of hide
C) Reconstituted leather
D) Split hide
  • 17. Which tanning method is known for producing very soft and supple leather?
A) Brain tanning
B) Vegetable tanning
C) Mineral tanning
D) Chrome tanning
  • 18. What is the main difference between top-grain and split leather?
A) Split leather is more expensive
B) Top-grain includes the grain layer
C) Split leather is stronger
D) They are the same thing
  • 19. What is 'case hardening' in leather?
A) Adding metal
B) Hardening the entire leather
C) Waterproofing
D) Dry outer layer
  • 20. What is commonly used to neutralize leather after vegetable tanning?
A) Nitric acid
B) Sodium bicarbonate
C) Hydrochloric acid
D) Sulfuric acid
  • 21. What is 'boarding' leather?
A) Preparing the leather for dyeing
B) Cutting the leather
C) Sewing the leather
D) Creating a grain pattern
  • 22. What type of leather is traditionally used for saddles and belts?
A) Chrome-tanned
B) Vegetable-tanned
C) Brain-tanned
D) Oil-tanned
  • 23. What does 'retanning' involve?
A) Finishing process
B) First tanning process
C) Second tanning process
D) Dyeing process
  • 24. What is the purpose of using a glazing jack?
A) Sewing the leather
B) Cutting the leather
C) Stretching the leather
D) Polishing the leather
  • 25. Which tanning method relies on aldehyde compounds?
A) Vegetable tanning
B) Oil tanning
C) Chrome tanning
D) Aldehyde tanning
  • 26. What is the purpose of 'crusting' the leather?
A) Adding color to the leather
B) Drying the leather
C) Removing hair from the leather
D) Making the leather waterproof
  • 27. What tool is used to split leather into different thicknesses?
A) Splitting machine
B) Embossing machine
C) Sewing machine
D) Cutting machine
  • 28. What is the purpose of using wax on finished leather?
A) Enhancing shine and protection
B) Softening the leather
C) Adding color
D) Removing stains
  • 29. Which type of tanning is the most environmentally friendly?
A) Aldehyde tanning
B) Vegetable tanning
C) Synthetic tanning
D) Chrome tanning
  • 30. What is 'buffing' leather used for?
A) Smoothing the surface
B) Adding color
C) Stretching the leather
D) Removing moisture
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