PLASTICS Question Preview (ID: 24837)
Students Have To Identify The Different Characteristics Of Plastics With The Corresponding Type Of Plastic.
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When we heat these plastics, they become soft, which allows them to be formed into different shapes.
a) Thermoplastics
b) Elastomers
c) Thermostable plastics
d) Neoprene
These plastics are formed by strongly-linked chains running in different directions.
a) Thermoplastics
b) Thermostable plastics
c) Elastomers
d) Nylon
These plastics are hard, resistant and very elastic.
a) Thermoplastics
b) Thermostable plastics
c) Polyester resins
d) Elastomers
Nylon is a...
a) Thermoplastic
b) Thermostable plastic
c) Elastomer
d) Natural rubber
This plastic is harder and more resistant than synthetic rubber and waterproof.
a) Poyurethane
b) Melamine formaldehyde
c) Neoprin
d) Cellophane
Their uses are kitchen utensils, paints, aircraft and rocket exteriors.
a) Polyester resins
b) Teflon
c) Natural rubber
d) Neoprene
The trade name of Polymethyl methacrylate (PMMA) is
a) Plexiglas
b) Teflon
c) Bakelite
d) Coke
These plastics are flexible, resistant to chemicals and have a hard surface
a) Natural rubber
b) Melamine formaldehyde (MF)
c) Polypropylene (PP)
d) Nylon
These plastics are porous and soft
a) Porexpan
b) Teflon
c) PVC
d) Plexiglas
They are made by vulcanisation
a) Polystyrene (PS)
b) Polythene (PE)
c) Polyurethane (PUR)
d) Elastomers
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