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Properties and Treatment of Wood

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

What is chipboard made from?

a)

Wood particles

b)

Plastic

c)

Metal

2.

2. This type of wood comes from deciduous trees which lose their leaves annually. What is it?

a)

A. Veneers 

b)

B. Plywood 

c)

C. Hardwood 

d)

D. Softwood 

3.

3. It is a type of wood that comes from conifer which usually remains evergreen.

a)

A. Veneers 

b)

B. Plywood 

c)

C. Hardwood 

d)

D. Softwood 

4.

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)

A. Cross-laminated timber 

b)

B. Parallel strand lumber 

c)

C. Laminated veneer lumber 

d)

D. Particle board 

5.

This part of wood is the outermost layer of stem and root of woody plants.

a)

Cambium Layer

b)

Sapwood

c)

Heartwood

d)

Bark

6.

It is a thin layer of generative tissue lying between the bark and the wood of a stem

a)

Cambium Layer

b)

Stem

c)

Bark

d)

Heartwood

7.

This part is the inner part of the wood which is made up of accumulated dead cells.

a)

Bark

b)

Branch

c)

Heartwood

d)

Cambium Layer

8.

This part is the living, outermost portion of a woody stem

a)

Cambium Layer

b)

Sapwood

c)

Pith

d)

Bark

9.

It is a sheet material from thin layers or "plies" of wood veneer

a)

Wood Venner

b)

Plyboard

c)

Plywood

d)

MDF

10.

The tough, fibrous cellular substance that makes up most of the stems and branches of trees beneath the bark

a)

Wood

b)

Softwood

c)

Conifer

d)

Evergreen

11.

The timber product manufactured by sawing, resawing, passing lengthwise through a planing machine, cross-cutting to length, and grading

a)

Wood

b)

Log

c)

Lumber

12.

The moisture content at which wood neither gains nor loses moisture when surrounded by air at a given temperature and relative humidity

a)

Equilibrium moisture content

b)

Moisture content

c)

Fiber-saturation point

13.

The amount of water contained in a wood piece, expressed as a percentage of the weight of the wood when oven-dry

a)

Equilibrium moisture content

b)

Moisture content

c)

Fiber-saturation point

14.

Lumber that is sawn, edged, and trimmed, but not surfaced

a)

Rough lumber

b)

Dressed lumber

15.

Lumber that is surfaced with a planing machine to attain a smooth surface and uniform size

a)

Rough lumber

b)

Dressed lumber

16.

Of or pertaining to lumber seasoned in a kiln under controlled conditions of heat, air circulation, and humidity

a)

Seasoned

b)

Kiln-dried

c)

Air-dried

d)

Oven-dry

17.

Of or pertaining to lumber seasoned by exposure to the atmosphere

a)

Seasoned

b)

Kiln-dried

c)

Air-dried

d)

Oven-dry

18.

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

a)

Plastic

b)

Calendering

c)

Sheeting

d)

Film

19.

A plastic capable of softening or fusing when heated without a change in any inherent properties, and of hardening again when cooled

a)

Thermoplastic

b)

Vinyl

c)

Nylon

20.

A tough, light, and flexible thermoplastic used esp. in the form of sheeting and film for packaging, damp proofing, and as a vapor retarder

a)

Polystyrene

b)

Polyethylene

c)

Polypropylene

21.

A tough, thermoplastic that is resistant to heat and chemicals and used for pipe fittings, electrical insulation, and carpeting fibers

a)

Polystyrene

b)

Polyethylene

c)

Polypropylene

22.

A hard, tough, stable thermoplastic that is easily colored and molded, expanded, or rolled into sheeting

a)

Polystyrene

b)

Polyethylene

c)

Polypropylene

23.

A white, water-insoluble thermoplastic widely used in the manufacture of floor coverings, insulation, and piping

a)

Polyvinyl resin

b)

Polyvinyl chloride

c)

Polyvinyl butyral

24.

Any of various thermoplastic or thermosetting resins used in flexible and rigid foams, elastomers, and resins for sealants, adhesives, and coatings

a)

Polyurethane

b)

Postforming

c)

Service temperature

d)

Softening point

25.

Any of a group of thermosetting resins used in the manufacture of plastics and textile fibers

a)

Polyester

b)

Rubber

c)

Laminate

d)

Silicone

26.

A product, such as plywood and plastic laminate, made by uniting two or more layers of material by an adhesive or other means

a)

Polyester

b)

Rubber

c)

Laminate

d)

Silicone

27.

Identify the type of wood defect

a)

Check

b)

Wane

c)

Knot

d)

Split

28.

Identify the wood defect

a)

Tight knot

b)

Loose knot

29.

Identify the wood defect

a)

Split

b)

Check

c)

Knot

d)

Cupping

30.

What type of a defect in timber is this

a)

Cup

b)

Bow

c)

Twist

d)

Check