WorksheetsTypes of Timber
Total questions: 45
Worksheet time: 28mins
What are the two main categories of timber?
Hardwood and Softwood
Hard and Soft
Oak and Pine
Maple and Cedar
Hardwood and softwood refer to types of timber based on:
the density of the wood
the type of tree they come from
the color of the wood
the age of the tree
What type of trees are hardwoods?
Hardwoods are _______ trees.
Deciduous
Coniferous
Evergreen
Tropical
What type of trees are softwoods?
Softwoods are _______ trees.
Coniferous
Deciduous
Evergreen
Broadleaf
Deciduous trees are generally characterized by:
having leaves that fall off seasonally
having evergreen leaves
growing in tropical regions
producing cones
Which of the following is an example of a deciduous tree?
Pine
Oak
Spruce
Fir
Coniferous trees are generally characterized by:
Broad leaves
Needle-like leaves
Deciduous nature
Flowering ability
What is a typical example of commonly used softwood?
A) Oak
B) European redwood
C) Mahogany
D) Beech
What is a typical example of commonly used softwood?
A) Ash
B) Whitewood
C) Beech
D) Mahogany
What is a typical example of commonly used softwood?
Douglas fir
Oak
Ash
Mahogany
What is a typical example of commonly used hardwood?
A) European redwood
B) Whitewood
C) Oak
D) Douglas fir
What is a typical example of commonly used hardwood?
A) Ash
B) European redwood
C) Whitewood
D) Douglas fir
What is a typical example of commonly used hardwood?
A) Beech
B) European redwood
C) Whitewood
D) Douglas fir
What is a typical example of commonly used hardwood?
Mahogany
European redwood
Whitewood
Douglas fir
Fill in the blank: European redwood, whitewood, and Douglas fir are examples of commonly used ________.
softwood.
hardwood.
metal.
plastic.
What are softwoods such as whitewood generally used for?
A) Heavy structural work
B) Carcassing (studwork, joists and rafters)
C) Fine-quality joinery
D) Endangered species timber.
Which type of wood is used for high-quality structural work and joinery?
A) Whitewood
B) Redwood
C) Brazilian mahogany
D) Sapele
Hardwoods tend to be used for ________ and fine-quality joinery.
heavy structural work.
lightweight furniture.
temporary structures.
outdoor decking.
True or False: True mahogany is an endangered species and timber sold as mahogany is often an alternative such as sapele or utile.
True
False
What is Whitewood commonly used for?
Flooring
Carcassing (studwork, joists, and rafters)
Furniture
Roofing
What type of wood is commonly used for joinery and is easier to work with than whitewood?
Redwood
Douglas fir
Oak
Pine
Fill in the blank: Douglas fir is a high-quality expensive softwood used for joinery and can be used 'green' (unseasoned) for heavy construction timbers. It will require treatment for use ________.
outdoors.
indoors.
in dry climates.
in furniture making.
What is a common use for Beech timber?
Exterior joinery
Mallets
Heavy-duty framing
Flooring
Fill in the blank: Oak is often referred to as 'the king of ______'.
hardwoods
softwoods
trees
forests
What is a characteristic of Ash timber?
Very durable
Not very durable
Dark red/brown color
Used in wet areas
Fill in the blank: Mahogany can refer to many different species with a dark ___ color.
red/brown
green
blue
yellow
When choosing which species of timber to use, the following points should be taken into account. Are there legal and sustainable supplies of the timber?
Yes, there are legal and sustainable supplies.
No, there are no legal and sustainable supplies.
It depends on the region.
Not applicable.
Which factors should be considered regarding the end use of timber as a structural material?
Durability and strength
Color and texture
Cost and availability
All of the above
Durability is an important factor in assessing the suitability of a timber species because:
it affects the longevity and performance of the timber in various conditions.
it determines the color and texture of the timber.
it influences the cost of timber production.
it impacts the ease of cutting and shaping the timber.
The timber should be reduced to a moisture content of below 20% which is the threshold of wet rot.
True
False
A range of different chemical treatments has been developed to enhance the durability and service life of timber. These treatments impregnate the wood cells, making them resistant to decay, insects, weather or fire.
True
False
Is the wood from a certified legal and sustainably-managed forest source such as the FSC (Forest Stewardship Council) or the PEFC (Programme for the Endorsement of Forestry Certification), or is it from a source that is making progress towards certification ('verified progress')?
Certified by FSC or PEFC
Making progress towards certification
Not certified or verified
MDF in the context of manufactured boards is:
Medium Density Fiberboard
Multi-Dimensional Framework
Metallic Design Fabrication
Modular Development Form
Chipboard is a type of ______ in the context of manufactured boards.
wood
plastic
metal
glass
OSB (orientated strand board) is a type of:
Plywood
Manufactured board
Natural wood
Metal sheet
Plywood is a type of manufactured board. What is it primarily made from?
Solid wood
Wood veneers
Plastic
Metal
Hardboard is a type of:
metal sheet
plastic composite
wood-based manufactured board
glass panel
Blockboard in the context of manufactured boards is:
a type of plywood with a core made from strips of wood
a type of particle board made from sawdust
a type of fiberboard made from wood fibers
a type of laminated board made from plastic
Chipboard is made from small chips of wood, bonded together with _______.
adhesive
nails
staples
screws
Plywood is available in many different types. Which type of plywood is very high grade and excellent for use in extreme conditions? (a)
Marine ply
Birch ply
Flex ply
Shuttering ply
Plywood is available in many different types. Which type of plywood is a flexible plywood used for forming shapes?
Marine ply
Birch ply
Flex ply
Shuttering ply
Plywood is available in many different types. Which type of plywood is used for roof decking, boarding up, security fencing, and shoring for concreting? (a)
Marine ply
Birch ply
Flex ply
What is a characteristic of hardboard?
High strength
Low cost
Moisture resistant
Rough on both sides
