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During the construction of particle board in the extrusion pressing process, what is the orientation of the wood particles with respect to the plane o
Question

During the construction of particle board in the extrusion pressing process, what is the orientation of the wood particles with respect to the plane of board?

A.


B.

90°

C.

45°

D.

30°

Correct option is A


Extruded Particle Board : -
A board manufactured by mixing particles of wood and/or other lignocellulosic materials of predetermined sizes and shapes with synthetic resins and pressing while the mix is being forced through an extrusion hot platen press, pressure being applied in the direction of the length of extrusion which tends to orient the particles considerably in a direction at right angles to the direction of extrusion.

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