Understanding Timber Defects

What is a dead knot in timber?

• A knot that increases the strength of timber

• A knot that enhances the timber's appearance

• A knot that is loose and may fall out

• A knot that is tightly integrated into the timber

What is a characteristic of a live knot compared to a dead knot?

• It is likely to fall out

• It is black in color

• It is always found on the edge of the timber

• It is similar in color to the timber

Which type of wood is known for having leaves that fall in autumn?

• Softwood

• Hardwood

• Treated wood

• Manufactured wood

Which type of wood typically has needles?

• Deciduous wood

• Hardwood

• Softwood

• Balsa wood

Which tree type is associated with hardwood?

• Pine tree

• Fir tree

• Cedar tree

• Maple tree

What causes club shakes in timber?

• Chemical treatments

• Improper cutting techniques

• Lack of nutrients or twisting due to wind

• Excessive moisture

Which type of defect is a star shake?

• A seasoning defect

• A natural defect

• A chemical defect

• A mechanical defect

What is the main purpose of seasoning in timber processing?

• To reduce moisture and prevent defects like splitting

• To make the timber softer

• To increase the weight of the timber

• To enhance the color of the timber

What does the term 'green' refer to in timber?

• Timber that is freshly cut and still contains moisture

• Timber that is resistant to pests

• Timber that is environmentally friendly

• Timber that has been treated with green dye

What is a common issue with using green timber in construction?

• It is likely to split and shrink

• It is too heavy to use effectively

• It attracts more insects

• It does not hold paint well