Summer Exams Flashcards
What is seasining
Drying procces of timber
List three reasons for timber drying
Reduces moisture so wood doesnt rot or deform
Weighs less than
Increases strength and sturability
Insect resistant
List three ways of preventing wood splitting
Nailinng metal stripe to the planks
Painting them with paint
Damp cloth on the end of it
List two categories of defects
Natrual and artificial
Define the term manufactured board
man made by using solid timber fibres, strands, particles and veneers being glued together
What does MDF stand for?
M - Medium D - Density F - Fiberboard
Is plywood made from a even or odd amount of sheets
Odd
What does OSB stand for?
Oriented Strand Board
How does wood bowimg accure?
Uneven finishing
Changes in humidity
Whats thermoplastic
Acrylic, PVC,polythene
Lightweight
Easy to heat and re-shape multiple times
What is thermosetting plastic
Polyester,bakelite, melamine.
Heat resistant, very durable
Reatains shape durimg use
What does PPE stand for
Personal protective equipment
What is tension
Pulling force
What is torsion
Twisting force
What is shear
Two parts moving past eachother
