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How to sharpen a blade in the field
Contributed by: Roe
  • 1. What is the primary purpose of sharpening a blade in the field?
A) Making it look new
B) Maintaining cutting efficiency
C) Increasing its value
D) Adding weight
  • 2. Which of these is NOT a common field sharpening tool?
A) Diamond hone
B) Pocket stone
C) Ceramic rod
D) Bench grinder
  • 3. What angle is generally recommended for a general-purpose knife edge?
A) 20-25 degrees
B) 70-75 degrees
C) 45-50 degrees
D) 5-10 degrees
  • 4. What is the first step in sharpening with a whetstone or pocket stone?
A) Apply pressure
B) Find the burr
C) Start with the finest grit
D) Lubricate the stone
  • 5. What does 'creating a burr' refer to in sharpening?
A) A rough patch on the stone
B) A smooth, polished edge
C) A chipped section of the blade
D) A thin wire edge formed on the opposite side
  • 6. How do you remove the burr?
A) Ignoring it
B) Alternating strokes, lighter pressure
C) Heavy pressure on one side
D) Scraping it off
  • 7. What is the primary benefit of using a strop?
A) Polishing the edge
B) Sharpening the edge
C) Removing rust
D) Strengthening the blade
  • 8. When using a sharpening steel, what is the correct motion?
A) Drawing the blade across at a consistent angle
B) Holding the blade still and moving the steel
C) Striking the blade against the steel
D) Pressing hard and sawing back and forth
  • 9. What type of lubrication is best for a sharpening stone?
A) Cooking oil
B) Motor oil
C) Honing oil or water
D) No lubrication
  • 10. What is the 'paper test' used for?
A) Checking sharpness
B) Cleaning the blade
C) Measuring the angle
D) Lubricating the stone
  • 11. If you're using a two-sided stone, which grit do you start with for a dull blade?
A) Fine grit
B) Doesn't matter
C) Medium grit
D) Coarse grit
  • 12. What is the best way to clean a sharpening stone?
A) With sandpaper
B) With a metal scraper
C) With water and a brush
D) Just wipe it off
  • 13. What should you do after sharpening to maintain the edge?
A) Hit it against something hard
B) Nothing
C) Strop the blade
D) Store it wet
  • 14. What is the advantage of a diamond sharpening stone?
A) They sharpen very quickly
B) They are self-lubricating
C) They are very inexpensive
D) They never wear down
  • 15. When is it appropriate to use a ceramic rod?
A) For removing rust
B) For rough sharpening
C) For reprofiling a blade
D) For honing and maintaining an edge
  • 16. What does 'honing' primarily do?
A) Changes the blade's overall angle.
B) Removes large chips from the blade.
C) Adds a protective coating to the blade.
D) Straightens and refines the edge.
  • 17. What is a good safety practice when sharpening a knife?
A) Keep fingers away from the blade's path
B) Use excessive force
C) Sharpen quickly
D) Sharpen while distracted
  • 18. How does the hardness of the steel affect sharpening?
A) Hardness doesn't affect sharpening
B) Harder steel takes longer to sharpen
C) Harder steel is easier to sharpen
D) Softer steel holds an edge longer
  • 19. What should you do if your sharpening stone becomes clogged with metal filings?
A) Ignore it
B) Clean it with oil and a brush
C) Use sandpaper
D) Throw it away
  • 20. What is the purpose of using a guide when sharpening?
A) Maintaining a consistent angle
B) Making the blade stronger
C) Speeding up the process
D) Cleaning the blade
  • 21. Which of the following describes a convex edge?
A) Serrated edge
B) Rounded profile from spine to edge
C) Concave or hollow grind
D) Flat grind with a sharp angle
  • 22. What is the main advantage of a serrated blade?
A) Good for cutting fibrous materials
B) Easy to sharpen
C) Holds an edge longer than a plain blade
D) Ideal for carving wood
  • 23. How do you sharpen a serrated blade?
A) Using a conical or triangular file
B) Using a flat sharpening stone
C) Using a sharpening steel
D) Using a strop
  • 24. What is a common sign that a blade needs sharpening?
A) It is shiny and reflective
B) It slips or requires excessive force to cut
C) It is perfectly straight
D) It feels warm to the touch
  • 25. What does 'reprofiling' a blade mean?
A) Polishing the blade
B) Straightening a bent blade
C) Cleaning the blade
D) Changing the angle of the cutting edge
  • 26. What is the correct direction to move the blade across the sharpening stone?
A) Towards the edge
B) Back and forth
C) Away from the edge
D) In a circular motion
  • 27. What does TPI stand for concerning saws and files?
A) Tension per inch
B) Thickness per inch
C) Teeth per inch
D) Turns per inch
  • 28. Which of the following is best for creating a razor sharp edge?
A) Using only the coarsest grit
B) Skipping grits
C) Using progressively finer grits
D) Applying excessive pressure
  • 29. What is the recommended pressure to use when sharpening?
A) Very heavy pressure
B) Light to moderate pressure
C) Pressure that bends the blade
D) No pressure at all
  • 30. After sharpening a knife, what is the best way to store it?
A) Soaked in water
B) With the blade exposed
C) Loose in a drawer
D) In a sheath or block
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