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:
|
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:
|
3. |
Terylene is a/an |
A. |
addition polymer | B. |
poly amide | C. |
homopolymer | D. |
none of these |
Answer: Option D
Explanation:
|
4. |
Rayon is a __________ fibre. |
A. |
cellulosic | B. |
polyamide | C. |
polyester | D. |
natural |
Answer: Option A
Explanation:
|
5. |
Commercial production of polypropylene employs __________ polymerisation. |
A. |
emulsion | B. |
suspension | C. |
solution | D. |
bulk |
Answer: Option C
Explanation:
|