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- 1. Multiple Choice
Which of the following is a thermosetting polymer?
polystyrene
polyethylene
nylons
epoxy
- 2. Multiple Choice
The chain growth process is usually much slower than the condensation process.
True
False
- 3. Multiple Choice
Which of the following reaction is not accompanied by elimination of a byproduct molecule?
addition polymerization
condensation polymerization
both of the mentioned
none of the mentioned
- 4. Multiple Choice
Polymer classification based on structure are... EXCEPT
Network
Linear
Synthetic
Branched
- 5. Multiple Choice
Amino acids react to form peptides and proteins, this process is known as
addition polymerization
substitution polymerization
condensation polymerization
hydration polymerization
- 6. Multiple Choice
Recycle bottles of plastic are made from
peptides
polyamides
nylon
polyethylene terephthalate
- 7. Multiple Choice
In condensation of polymerization, monomers are involved which contain functional groups of
same kind
different kind
all groups
compounds
- 8. Multiple Choice
Large molecules made up of small monomers are called
polymers
peptides
peptones
monomers
- 9. Multiple Choice
Monomers of ethene in thousand numbers react together in addition polymerization to produce
polyamides
polyesters
poly(ethene)
all of them
- 10. Multiple Choice
Deformation behavior of a thermoplastic plastic above glass transition temperature
viscous fluid
brittle
leathery and then rubbery
glassy
- 11. Multiple Choice
Which polymer have this kind of structure?
Elastomer
Kevlar
Rubber
Cotton
- 12. Multiple Choice
Small molecules that make up larger molecules
polymer
monomer
plastic
synthetic
- 13. Multiple Choice
Once formed, it can be heated and reformed over and over again
thermoset
thermoplastic
elastomer
kevlar
- 14. Multiple Choice
Thermoplastic have...
good surface finish, UV resistance, recyclabillity
good surface finish, low strength, can't be reformed with heat
good dimensional stability, low strength, good heat resistance
high regidity, UV resistant, can be reformed with heat
- 15. Multiple Choice
Stages involve in addition polymerization EXCEPT
propagation
catalyst
termination
initiation
- 16. Multiple Choice
Type of thermosetting processing EXCEPT
Compression molding
Transfer molding
Calendaring
Sparying
- 17. Multiple Choice
Plastic bottles are fabricated by using which method
Rotational molding
Injection molding
Blow molding
Extrusion
- 18. Multiple Choice
Name of this process?
Extrusion
Compression molding
Injection molding
Transfer molding
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