Wood and Wood Products Quiz

What is the primary advantage of plywood over natural wood?

• Dimensional stability

• Higher density

• Lower cost

• Better color

Answer explanation

The primary advantage of plywood over natural wood is its dimensional stability. Plywood is engineered to resist warping and shrinking, making it more reliable in various environmental conditions compared to solid wood.

What type of adhesive is used for exterior-use plywood?

• Phenol-formaldehyde

• Urea-formaldehyde

• Polyvinyl acetate

• Epoxy resin

What is the main difference between plywood and laminated wood?

• Plywood uses synthetic resins, laminated wood does not

• Laminated wood is made from metal, plywood is not

• Plywood has crossed grain layers, laminated wood has parallel grain layers

• Plywood is used for furniture, laminated wood is not

Which of the following is NOT a characteristic of plywood?

• Uniformity of strength

• High thermal conductivity

• Resistance to splitting

• Decorative value

What is the typical range of thickness for plywood?

• 10 mm to 100 mm

• 3 mm to 30 mm

• 5 mm to 50 mm

• 1 mm to 10 mm

What is the main use of phenol-formaldehyde resin in plywood?

• To reduce weight

• To enhance color

• To increase flexibility

• To provide weather resistance

Which product is made by the parallel gluing of lumber boards?

• Plywood

• Laminated wood

• Particleboard

• Fibreboard

What is the main source of particles for particleboard?

• Recycled plastic

• Metal shavings

• Glass fibers

• Wood residues

Which type of particleboard is used for structural purposes?

• Medium-density

• High-density

• Extruded

• Low-density

What is the main method of pulping in fibreboard production?

• Biological pulping

• Thermomechanical process

• Chemical pulping

• Electrochemical process