WorksheetsProperties and Treatment of Wood
Total questions: 30
Worksheet time: 15mins
What is chipboard made from?
Wood particles
Plastic
Metal
2. This type of wood comes from deciduous trees which lose their leaves annually. What is it?
A. Veneers
B. Plywood
C. Hardwood
D. Softwood
3. It is a type of wood that comes from conifer which usually remains evergreen.
A. Veneers
B. Plywood
C. Hardwood
D. Softwood
8. It is made by taking wood fibers and wood chips then mixing them with glue and other chemicals and putting them in a mold, which is also called chipboard.
A. Cross-laminated timber
B. Parallel strand lumber
C. Laminated veneer lumber
D. Particle board
This part of wood is the outermost layer of stem and root of woody plants.
Cambium Layer
Sapwood
Heartwood
Bark
It is a thin layer of generative tissue lying between the bark and the wood of a stem
Cambium Layer
Stem
Bark
Heartwood
This part is the inner part of the wood which is made up of accumulated dead cells.
Bark
Branch
Heartwood
Cambium Layer
This part is the living, outermost portion of a woody stem
Cambium Layer
Sapwood
Pith
Bark
It is a sheet material from thin layers or "plies" of wood veneer
Wood Venner
Plyboard
Plywood
MDF
The tough, fibrous cellular substance that makes up most of the stems and branches of trees beneath the bark
Wood
Softwood
Conifer
Evergreen
The timber product manufactured by sawing, resawing, passing lengthwise through a planing machine, cross-cutting to length, and grading
Wood
Log
Lumber
The moisture content at which wood neither gains nor loses moisture when surrounded by air at a given temperature and relative humidity
Equilibrium moisture content
Moisture content
Fiber-saturation point
The amount of water contained in a wood piece, expressed as a percentage of the weight of the wood when oven-dry
Equilibrium moisture content
Moisture content
Fiber-saturation point
Lumber that is sawn, edged, and trimmed, but not surfaced
Rough lumber
Dressed lumber
Lumber that is surfaced with a planing machine to attain a smooth surface and uniform size
Rough lumber
Dressed lumber
Of or pertaining to lumber seasoned in a kiln under controlled conditions of heat, air circulation, and humidity
Seasoned
Kiln-dried
Air-dried
Oven-dry
Of or pertaining to lumber seasoned by exposure to the atmosphere
Seasoned
Kiln-dried
Air-dried
Oven-dry
Any of numerous synthetic or natural organic materials that are mostly thermoplastic or thermosetting polymers of high molecular weight and that can be molded, extruded, or drawn into objects, films, or filaments
Plastic
Calendering
Sheeting
Film
A plastic capable of softening or fusing when heated without a change in any inherent properties, and of hardening again when cooled
Thermoplastic
Vinyl
Nylon
A tough, light, and flexible thermoplastic used esp. in the form of sheeting and film for packaging, damp proofing, and as a vapor retarder
Polystyrene
Polyethylene
Polypropylene
A tough, thermoplastic that is resistant to heat and chemicals and used for pipe fittings, electrical insulation, and carpeting fibers
Polystyrene
Polyethylene
Polypropylene
A hard, tough, stable thermoplastic that is easily colored and molded, expanded, or rolled into sheeting
Polystyrene
Polyethylene
Polypropylene
A white, water-insoluble thermoplastic widely used in the manufacture of floor coverings, insulation, and piping
Polyvinyl resin
Polyvinyl chloride
Polyvinyl butyral
Any of various thermoplastic or thermosetting resins used in flexible and rigid foams, elastomers, and resins for sealants, adhesives, and coatings
Polyurethane
Postforming
Service temperature
Softening point
Any of a group of thermosetting resins used in the manufacture of plastics and textile fibers
Polyester
Rubber
Laminate
Silicone
A product, such as plywood and plastic laminate, made by uniting two or more layers of material by an adhesive or other means
Polyester
Rubber
Laminate
Silicone
Identify the type of wood defect
Check
Wane
Knot
Split
Identify the wood defect
Tight knot
Loose knot
Identify the wood defect
Split
Check
Knot
Cupping
What type of a defect in timber is this
Cup
Bow
Twist
Check
