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