WorksheetsDT RM Wood 1
Total questions: 17
Worksheet time: 19mins
The classification of natural timber is by two groups: hardwoods and softwoods. Which one of the following is the correct statements to describe hardwood & softwood?
Softwood comes from deciduous trees: trees that shed leaves in autumn. Hardwoods come from trees that are coniferous: evergreen trees that bear cones and have needles.
Softwood comes from trees that are coniferous: evergreen trees that bear cones and have needles. Hardwoods come from deciduous trees: trees that shed leaves in autumn.
Softwood show a wide range of colours and gain patterns. Hardwoods grow mainly in colder and cooler temperate climates (including Scandinavia, Canada, Northern Russia, and at high altitudes elsewhere.
An illustration showing above is how planking trees can affect grain structures in finished lengths of timber. Planks that have a wood grain that is closer together are stronger and denser (heavier) than those with a wider spaced wood grain running through it.Name the method of sawing A and B?
Plain and Quarter sawing
Slash and Radial sawing
Radial and Quarter sawing
Quarter and Plain sawing
Seasoning is the removal of excess moisture from the wood by drying it after conversion. What is the name of seasoning method shown?
Kiln seasoning
Air seasoning
Traditional seasoning method
Warping
Which one of the following are advantages of Air seasoning. (You may choose more than one)
It takes only a few days or weeks and kills insect eggs in the wood.
It is expensive to build and to run.
It is cheap
It needs little skilled attention.
Warping is the general name for any distortion from the true shape. Which one of the following is the correct order for the four ways in which wood warps as shown in the picture.
- Bowing 2. Twisting 3. Cupping 4. Springing
- Springing 2. Twisting 3. Bowing 4. Springing
- Cupping 2. Bowing 3. Springing 4. Twisting
- Cupping 2. Springing 3. Twisting 4. Bowing
Shakes. The separation of adjoining layers of wood usually caused by strong winds, poor felling, or shrinkage. Which one of the following is the correct picture to show shakes?
Knots are where branches grew from the tree causes the formation of holes in the wood as shown in the picture. It
strengthen the timber
weakens the timber
Choose two (2) properties of Pine.
Very Strong
Easy to work with
Difficult to work with
Fairly strong
This wood is to use to make frames of doors and windows
Cedar
Pine
Spruce
Hardwood
Why are Redwoods are used in making of furniture such as shelves and cupboards
Relatively strong
Hard and fairly strong
Attractive appearance.
Expensive
What is this product made of?
Plank
Pine
Spruce
Softwood
Choose 3 (three) properties of Oak.
Very strong
Very expensive
Finishes well
Light to dark brown
Which of the following product is made of Oak?
Why Beech is used to make toys for kids?
Fairly durable
Attractive appearance
Good for use under water.
Withstands wear and shocks
Blockboard is manufactured with a central core of softwood strips bonded together with adhesive and covered with a sheet of plywood on either side, and then often a finishing veneer.
Chipboard is made up of small chips of wood bonded together with resin and compressed to form sheets. It is not as strong as plywood and blockboard.
From above statements, write ONE (1) difference of these two manufactured board.
(a)
MDF stands for
Medium Density Fibreboard
Medium Defected Fibreboard
Medium Density Fibres
Made Density Fibreboard
Medium Density Fibreboard (MDF) is commonly used for (choose 3)
expensive furniture
soundproofing
making kitchen cabinets
inexpensive furniture
