Q.18 Select the correct option for the given statements. Statement 1: Due to their low strength, particle boards are less durable than plywood or solid wood. However, using laminates or veneers on the surface can aid to improve durability. Statement 2: A layer of melamine can be applied to the top surface of particle boards to make them fire-resistant.
- AStatement 1 is true and statement 2 is false
- BBoth statement 1 and statement 2 are trueCorrect
- CBoth statement 1 and statement 2 are false
- DStatement 1 is false and statement 2 is true
Solution
Concept
Particle board has low strength and durability, but surface laminates, veneers or melamine improve its durability and fire resistance.
Step-by-step solution
1. Particle board is made of wood chips bonded with resin. It is weaker and less durable than plywood or solid wood, and it is affected by moisture. 2. Laminates or veneers on the surface protect it and improve its durability. So Statement 1 is true. 3. A melamine layer on the top surface makes the board harder, more moisture resistant and more fire resistant. So Statement 2 is true. 4. Both statements are true. Answer is B.
Explanation
Particle board is cheap but weak, so it is less durable than plywood or solid wood. Covering it with laminate, veneer or melamine protects the surface. Melamine-faced boards also give better fire resistance, so both statements are true.
Why the other options are wrong
A: Statement 2 is also true, because a melamine facing improves fire resistance. C: Both statements are correct facts about particle board. D: Statement 1 is true, because particle board is weaker and less durable than plywood.
Shortcut
Particle board is weak, but a surface layer (laminate, veneer or melamine) improves it.
Common mistake
Thinking melamine is only for decoration and has no role in fire resistance.
Correct answer: B) Both statement 1 and statement 2 are true