How to refinish hardwood floors - Quiz
  • 1. What is the first step in refinishing hardwood floors?
A) Apply a new coat of polyurethane
B) Apply wood filler
C) Clear the room completely
D) Rent a drum sander
  • 2. What grit sandpaper is typically used for the first sanding pass?
A) 80-grit
B) 36-40 grit
C) 220-grit
D) 120-grit
  • 3. What type of sander is typically used for large, open areas?
A) Drum sander
B) Belt sander
C) Orbital sander
D) Detail sander
  • 4. What is the purpose of using wood filler?
A) Make the floor shiny
B) Add color to the floor
C) Fill nail holes and gaps
D) Protect the floor from scratches
  • 5. After sanding, what should you do before applying stain or finish?
A) Let the dust settle overnight
B) Wash the floor with soap and water
C) Vacuum and tack cloth the floor
D) Apply a primer
  • 6. What is the purpose of using a tack cloth?
A) Buff the finish
B) Remove fine dust particles
C) Clean up spills
D) Apply stain evenly
  • 7. What is a common type of finish used for hardwood floors?
A) Polyurethane
B) Latex paint
C) Acrylic sealant
D) Wallpaper paste
  • 8. How many coats of finish are typically recommended?
A) 1
B) 10+
C) 2-3
D) 5-6
  • 9. What should you do between coats of finish?
A) Let the finish cure for a week
B) Apply more finish immediately
C) Wax the floor
D) Lightly sand and clean
  • 10. What grit sandpaper is used for between coats of finish?
A) 40 grit
B) 220-320 grit
C) 100 grit
D) 80 grit
  • 11. What is 'screening' a floor?
A) Removing the old finish completely
B) Applying a sealant
C) Coloring the floor with stain
D) Lightly sanding between coats of finish
  • 12. How long should you wait before walking on a freshly finished floor?
A) 12 hours
B) Immediately
C) 1 hour
D) At least 24 hours
  • 13. What type of finish offers the most durability?
A) Water-based polyurethane
B) Shellac
C) Wax
D) Oil-based polyurethane
  • 14. What is 'grain raising'?
A) The wood becoming darker
B) The wood shrinking when stain is applied
C) The wood fibers swelling when water-based stain/finish is applied
D) The wood becoming lighter
  • 15. How can you minimize grain raising?
A) Apply a pre-stain conditioner
B) Use oil-based stain only
C) Apply the finish thickly
D) Skip sanding
  • 16. What is the purpose of staining hardwood floors?
A) To make the floor smoother
B) To add shine to the floor
C) To protect the wood from moisture
D) To change the color of the wood
  • 17. What is the correct order of operations when staining a floor?
A) Stain, sand, finish
B) Finish, sand, stain
C) Sand, finish, stain
D) Sand, stain, finish
  • 18. What is the purpose of an edger sander?
A) Sand along edges and corners
B) Remove old stain
C) Apply finish
D) Sand large, open areas
  • 19. What safety equipment is essential when sanding?
A) Bare feet
B) Earplugs only
C) Gloves only
D) Dust mask and eye protection
  • 20. What does 'feathering' mean in the context of sanding?
A) Sanding in circular motions
B) Sanding against the grain
C) Gradually reducing the pressure on the sander at the end of a pass
D) Using a coarse grit sandpaper
  • 21. What is a potential issue with using old or improperly stored finish?
A) It may not cure properly
B) It will be more durable
C) It will be cheaper
D) It will dry faster
  • 22. How should you dispose of oily rags after applying stain or finish?
A) Lay them flat to dry completely outdoors
B) Soak them in water and put them in the trash
C) Bury them in the garden
D) Throw them in the trash immediately
  • 23. What is the main advantage of water-based polyurethane?
A) Higher durability
B) Lower cost
C) Low odor and faster drying time
D) Easier application
  • 24. What is a common mistake made when applying finish?
A) Applying too thick of a coat
B) Sanding too lightly between coats
C) Waiting too long between coats
D) Applying too thin of a coat
  • 25. What type of brush is best for applying polyurethane?
A) Sponge
B) Natural bristle or foam brush
C) Paint brush
D) Wire brush
  • 26. How can you check for flatness after sanding?
A) Use a long straightedge
B) Look at the floor from a distance
C) Feel the floor with your hands
D) Use a level
  • 27. What can cause finish to bubble?
A) Using a high-quality brush
B) Applying thin coats
C) Sanding with fine grit sandpaper
D) Applying finish in high humidity
  • 28. What is the best way to clean hardwood floors after refinishing?
A) Use a pH-neutral cleaner
B) Use abrasive cleaners
C) Use bleach
D) Use vinegar
  • 29. What is the purpose of a moisture meter when refinishing hardwood floors?
A) To measure the thickness of the wood
B) To measure the moisture content of the wood
C) To measure the gloss of the finish
D) To measure the flatness of the floor
  • 30. What is 'back-lapping' when applying finish?
A) Using a roller instead of a brush
B) Applying the finish in circles
C) Slightly overlapping each brush stroke
D) Skipping sections of the floor
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