mock jan 24 Flashcards
What are synthetic fibres
Man-made, from coal, oil, minerals e.t.c
Negatives of synthetic fibres
They’re not biodegradable or sustainable
Positives of synthetic fibres
can be engineered to give them a range of properties
e.g. flame resistance, stain resistance
What is the difference between mixed and blended fibres?
Mixed fibres happen after the yarn is spun
Blended fibres are blows together before the yarn is spun
what are standard components
screw, hinge, bracket, nails, stay
How can you prevent corroding of metals
galvanising or painting
What is a stay?
they’re fastened on doors to control how much they open
What is a catch
it is used to keep kids closed on boxed or doors shut on cabinets
what is ergonomics
the relationship and interaction between people and objects
what is anthropometrics
people measurements
e.g. heights or finger lengths
How is metal made?
by extracting metal ores from rocks in the earths crust by mining, the metal is then processed and refined
What are ferrous metals w/ examples
metals that contain iron
e.g. steel
what are non-ferrous metals
metals that don’t contain iron
e.g. aluminium, copper, tin
What is cutlery made of
what are ladders made of
stainless steel
aluminium
give some examples of alloys pls
brass, bronze