Grade 10 woodwork – Project Activity (Furniture Item) Quiz
1. When planning a school furniture project, what is the best first step to ensure the final piece meets requirements?
A working drawing and cutting list guides dimensions, material needs and sequence of work, reducing mistakes and waste.
2. Which timber property is most important when choosing wood for a classroom desk that must last many years?
Durable, stable timber resists wear, movement and moisture changes, making it suitable for long-lasting furniture.
3. What is the recommended unit of measurement for marking and cutting pieces in a Kenyan woodwork workshop?
Kenya uses the metric system; cm and mm give the precision needed for furniture-making.
4. Which joint is strongest for joining a table leg to an apron where high strength is needed?
Mortise and tenon joints provide mechanical strength and large glue area, ideal for load-bearing connections like table legs.
5. For a small school bookshelf project, which timber is commonly used from plantations in Kenya because it is easy to work and affordable?
Plantation-grown cypress and pine are affordable, workable and widely available in Kenya for furniture projects.
6. Which safety item is essential when sanding timber to protect lungs from fine dust?
A dust mask or respirator filters fine wood dust and protects the respiratory system during sanding.
7. When screwing a screw into solid timber, what should you do first to prevent splitting?
A pilot hole creates clearance for the screw, reducing the risk of splitting the wood.
8. Which adhesive is most commonly used for interior furniture assembly in schools for its ease of use and cleanliness?
PVA wood glue bonds well to timber, is easy to clamp, dries clear, and is commonly used for indoor furniture.
9. For a smooth painted finish on a wooden chair, what is the correct sequence of surface preparation?
Proper preparation—sanding, priming, filling and light sanding—gives a smooth, durable painted finish.
10. When making repetitive parts like chair legs, what workshop method saves time and ensures uniformity?
A jig or template ensures each part is the same size and shape, speeding production and improving consistency.
11. What grit progression is appropriate when sanding a tabletop before finishing?
Progressing from coarse to finer grits removes defects efficiently and produces a smooth surface for finishing.
12. Which tool is best for checking that the corners of a wooden cabinet are exactly 90 degrees?
A try or combination square provides an accurate right-angle reference for checking squareness of corners.
13. When estimating the cost of a furniture project for a class assignment in Kenya, which items should you include?
A full cost estimate should include all materials, fittings, finishing supplies and any labour to reflect true project cost.
14. Which finish will best protect a dining table from water rings and heat from plates?
Varnish or polyurethane forms a hard, protective film resistant to water and heat, suitable for tabletops.
15. What is the typical comfortable seat height for a dining chair suitable for most people in Kenya?
A seat height around 45 cm is commonly comfortable for adult use and is standard for dining chairs.
16. Which of the following is an environmentally responsible practice for sourcing wood in a school project?
Using certified or reclaimed wood reduces pressure on forests and teaches sustainable practice.
17. When clamping glued joints during assembly, what is important to avoid common problems?
Even clamping ensures good glue contact; removing excess glue prevents staining and poor finishes.
18. Which of these joinery methods is most suitable for drawer front to side connections in school furniture?
Dovetail joints provide strong interlocking connections ideal for drawer fronts that endure pulling forces.
19. In a furniture project, why is seasoning (drying) of timber important before use?
Seasoned timber has stable moisture content, which reduces movement, warping and cracking after construction.
20. Which hand tool is most appropriate for cutting accurate tenons on an apron piece for a table?
A tenon saw is designed for fine, straight cuts needed to form precise tenons for joints.
21. What is the correct action if a student notices a machine (e.g., electric planer) making unusual noise or vibration during use?
Stopping and reporting a fault prevents accidents and ensures the machine is checked before further use.
22. Which method is best to check that a long shelf will sit level in a classroom once installed?
A spirit level gives an accurate reading to ensure the shelf is horizontal when fixed in place.
23. When applying oil finish (e.g., Danish oil) to a wooden stool, what is a key safety/environmental consideration in Kenya?
Oily rags can self-combust; they should be stored flat, dried safely or disposed of per local hazardous-waste guidance.
24. For a student making a small wooden stool, which sequence of operations is most logical?
Following a planned sequence prevents mistakes and produces a better-quality stool efficiently.
25. Which hardware should be countersunk when fixing a wooden tabletop to avoid a rough surface and injury?
Countersinking allows screw heads to sit below the surface, which can then be filled and sanded smooth for safety and appearance.
26. If a student wants a visible wood grain with a thin protective coating on a Kenyan homemade coffee table, which finish is most appropriate?
A clear stain enhances grain colour while varnish or polyurethane provides protection and shows the grain.
27. Which wood species is commonly used in Kenya for durable furniture because it is a hardwood resistant to decay?
Mukau (also called African teak) is a durable hardwood found in East Africa and is commonly used for long-lasting furniture because of its strength and resistance to decay; pine and MDF are softer or engineered and less durable, and cedar shavings are not a structural timber.
28. Before starting a furniture project, what is the best way to ensure you purchase the correct amount of timber?
A cutting list with exact dimensions and a small waste allowance helps calculate the correct timber quantities and reduces waste and cost; estimating by eye or buying without measurements risks shortage or excessive waste.
29. Which joint is best suited for constructing a strong chair frame that resists twisting?
Mortise and tenon joints provide strong mechanical interlock ideal for frame structures like chairs; butt joints or stapling are much weaker and unsuitable for load-bearing frames.
30. For assembling the sides of a drawer where resistance to pulling forces is important, which joint is most appropriate?
Dovetail joints interlock to resist pulling forces, making them ideal for drawer sides; pocket screws and nails are weaker for drawer fronts and hot glue is not strong enough.
31. What is the recommended first step when preparing rough sawn timber for a furniture project?
Fresh timber must be dried to an appropriate moisture content and planed to the required dimensions to avoid movement and ensure accurate fitting; finishing or painting before drying traps moisture and causes defects.
32. Which tool is best for marking out right-angle lines on wood for accurate cuts?
A try square is specifically designed for marking and checking 90-degree angles; hammers, rasps and chisels are not measuring or marking tools for accurate right angles.
33. When using a power circular saw on a furniture panel, which safety practice is essential?
Using eye protection and keeping hands clear of the blade are core safety practices; loose clothing and removing guards are dangerous, and unsupported off-cuts can cause kickback.
34. What sanding sequence is correct to achieve a smooth furniture surface before finishing?
Beginning with coarser abrasives removes material and defects, then progressively finer grits produce a smooth surface suitable for finishing; doing the opposite locks scratches in.
35. Which adhesive is commonly used in woodwork for strong joints in furniture and is easy for school projects?
PVA wood glue forms strong bonds on wood, is non-toxic and easy to clamp and clean up, making it ideal for furniture; cooking oil, wallpaper paste, and spray paint are not suitable structural adhesives.
36. When using screws to join two pieces of wood, what should you do first to prevent splitting?
Drilling a pilot hole reduces splitting and makes driving screws easier; countersinking creates a recess for the screw head. Driving without a pilot or heating/hammers will damage the wood.
37. For veneering a furniture panel, what is the main advantage of using a thin decorative wood veneer over solid timber?
Veneer gives the look of expensive timber while using less of the valuable species and can be glued to stable substrates; it does not inherently prevent all movement and must be properly applied.
38. Which finish gives a hard, transparent protective film over furniture while enhancing wood grain?
Varnish forms a hard, clear protective film that highlights grain and protects the surface; water, soil, or chalk are not finishes.
39. Which method is best to bend thin wood for a curved furniture component like a chair back?
Steam softens the wood fibers allowing bending, and laminating thin veneers glued in a mold produces stable curves; the other options damage the wood or are ineffective.
40. What is the appropriate moisture content range for timber used indoors to minimize warping in Kenyan conditions?
A moisture content near 10–12% is typical for indoor furniture to reduce movement and warping; extremely dry or wet timber will cause problems.
41. When planning a school desk for comfort, what is a suitable standard seat height for many adolescents?
Around 450 mm is a common seat height for adolescents and many school chairs to allow comfortable posture; the other values are impractical.
42. When clamping glued joints during assembly, which practice gives the best result?
Even glue spread and balanced clamping produce strong joints; wiping squeeze-out keeps surfaces clean. Clamping after cure or uneven clamping leads to weak or misaligned joints.
43. Which tool is suitable for cutting small curved shapes in a furniture component by hand?
A coping saw is designed for cutting small curves and intricate shapes in wood; axes and planes are not for fine curved cuts and a marking gauge is for marking lines.
44. When finishing a table that will be used for meals, which finish is food-safe once cured and commonly used?
Food-safe oils like tung or food-grade mineral oil are suitable for surfaces that contact food once fully cured; automotive oils and adhesives are toxic and unsafe.
45. What is the main purpose of a stile and rail construction in a furniture door or cabinet front?
Stile and rail frames hold panels while allowing them to move with humidity; they provide rigidity and a neat appearance. The other options are incorrect or nonsensical.
46. Which fastener is the best choice when you need a neat removable connection for assembling knock-down furniture?
Cam lock fittings are designed for knock-down furniture allowing repeated assembly/disassembly; nails or permanent glue do not allow easy removal.
47. In a furniture project, why is it important to mark the grain direction when planing or sanding?
Planing or sanding in the direction of the grain minimizes tear-out and results in a better surface for finishing; the other statements are incorrect.
48. When constructing a small cabinet, where is it best to place heavier items for stability?
Placing heavy items low lowers the centre of gravity and improves stability, reducing the risk of tipping; storing heavy items high or unevenly increases top-heaviness and danger.
49. Which maintenance practice will prolong the life of wooden furniture in a Kenyan home?
Protecting wood from sunlight and moisture and maintaining the finish reduces cracking, fading and decay; leaving water on surfaces or exposing to rain damages furniture, and frequent coarse sanding is destructive.
50. Which piece of personal protective equipment (PPE) is most important when sanding wood to reduce inhalation of dust?
A dust mask or respirator filters fine wood dust and protects the lungs; flip-flops, scarves or sunglasses do not provide proper respiratory protection.
51. When estimating extra material to include for mistakes and saw kerf in a cutting list, which allowance is reasonable for a furniture project?
Including around 5–15% extra accounts for mistakes, saw kerf and defects in timber and is a practical allowance; 0% risks shortage and 200% is wasteful.
52. Which method helps ensure that two opposite legs of a table are exactly the same length during construction?
Scribing from a common reference and using accurate guides ensures matching leg lengths; guessing or uneven methods will lead to an uneven table.