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PLASTICS
Test Description: Students have to identify the different characteristics of plastics with the corresponding type of plastic.
Instructions: Answer all questions to get your test result.
1) When we heat these plastics, they become soft, which allows them to be formed into different shapes.
A
Elastomers
B
Thermoplastics
C
Thermostable plastics
D
Neoprene
2) These plastics are formed by strongly-linked chains running in different directions.
A
Thermoplastics
B
Elastomers
C
Nylon
D
Thermostable plastics
3) These plastics are hard, resistant and very elastic.
A
Elastomers
B
Polyester resins
C
Thermoplastics
D
Thermostable plastics
4) Nylon is a...
A
Thermostable plastic
B
Natural rubber
C
Thermoplastic
D
Elastomer
5) This plastic is harder and more resistant than synthetic rubber and waterproof.
A
Melamine formaldehyde
B
Neoprin
C
Poyurethane
D
Cellophane
6) Their uses are kitchen utensils, paints, aircraft and rocket exteriors.
A
Natural rubber
B
Neoprene
C
Teflon
D
Polyester resins
7) The trade name of Polymethyl methacrylate (PMMA) is
A
Coke
B
Bakelite
C
Plexiglas
D
Teflon
8) These plastics are flexible, resistant to chemicals and have a hard surface
A
Melamine formaldehyde (MF)
B
Natural rubber
C
Nylon
D
Polypropylene (PP)
9) These plastics are porous and soft
A
PVC
B
Teflon
C
Plexiglas
D
Porexpan
10) They are made by vulcanisation
A
Polythene (PE)
B
Polystyrene (PS)
C
Polyurethane (PUR)
D
Elastomers
*select an answer for all questions
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