Chemical Engineering - Polymer Technology
Exercise :: Polymer Technology - Section 5
| 1. |
Which of the following is the lowest cost plastic commercially available ? |
Answer: Option A
Explanation:
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| 2. |
Thermosetting plastic materials |
| A. |
can be repeatedly melted. | | B. |
is useful for melt casting. | | C. |
can not be melted after forming. | | D. |
is useful for spinning. |
Answer: Option C
Explanation:
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| 3. |
Terylene is a/an |
| A. |
addition polymer | | B. |
poly amide | | C. |
homopolymer | | D. |
none of these |
Answer: Option D
Explanation:
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| 4. |
Rayon is a __________ fibre. |
| A. |
cellulosic | | B. |
polyamide | | C. |
polyester | | D. |
natural |
Answer: Option A
Explanation:
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| 5. |
Commercial production of polypropylene employs __________ polymerisation. |
| A. |
emulsion | | B. |
suspension | | C. |
solution | | D. |
bulk |
Answer: Option C
Explanation:
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