Correct Answer - Option 2 : at right angle to one another
Concept:
Plywoods: The meaning of term ply is a thin layer. The plywood are boards which are prepared from thin layers of wood or veneers.
The three or more veneers in odd numbers are placed one above the other with the direction of grains of successive layers at right angles to each other.
They are held in position by application of suitable adhesives. The placing of veneers normal to each other increases the longitudinal and transverse strengths of plywood.
Application of plywood:
The plywoods are used for various purposes such as ceilings, doors, furniture, partitions, panelling walls, packing cases, railway coaches, formwork for concrete, etc.
The plywoods however are not suitable in situations subjected to direct shocks or impacts.
The use of plywood and its products has become so common at present that it has totally changed the design and complex of various structures such as buildings, offices, theatres, restaurants churches, temple, hospitals, etc.
