______ are manufactured by using lignocellulose materials, which are agglomerated, formed and pressed together by the use of an organic binder together in the presence of heat, pressure or moisture.

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DDA JE Civil 01 Apr 2023 Shift 1 Official Paper
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  1. Block boards
  2. Particle boards
  3. Plywood
  4. Veneers

Answer (Detailed Solution Below)

Option 2 : Particle boards
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Explanation:

Veneers:

Veneers are the thin sheets of the superior quality of 0.4 – 0.6 mm thickness.

A good quality veneers can be obtained from teak, rosewood and sissoo.

They are cut into thin sheets by rotary cutting machines or by slicing manually.

Plywood:

Thickness of plywood

3 ply – 3, 4, 5, 6 mm

5 ply – 5, 6, 8,9 mm

7 ply – 9, 12, 15, 16 mm

9 ply – 12, 15, 16, 19 mm

11 ply – 19, 22, 25 mm

More than 11 ply – as per order

Sun Mica:

Sun Mica is a thin hard decorative sheet usually ranges from 0.6 mm to 1.5 mm thick and is actually a blend of paper and plastic materials.

Particle Board:

It is a low-density fibre board. It is an engineered wood product manufactured from wood chips, sawmill shavings, or even sawdust, and a synthetic resin or another suitable binder, which is pressed and extruded.

It is generally 0.5 inch to 0.75 inches thick.

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