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Chemical Engineering - Polymer Technology

Exercise : Polymer Technology - Section 1
41.
The synthetic fibres produced from __________ are known as rayon.
lignin
cellulose
polyamides
ethylene glycol
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
protect rubber goods from attack by oxygen & ozone present in the atmosphere.
reduce its viscosity to permit easier processing.
reduce the time of vulcanisation and quantity of vulcanising agent.
increase its viscosity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.
solid
liquid
combination of solid & liquid
neither solid nor liquid
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following is generally not used as eord for synthetic rubber tyre casing ?
Dacron
Nylon
Cellulose
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
__________ is not a polyester fibre.
Terylene
Dacron
Nylon
Polyacrylonitrite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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