Chemical Engineering - Polymer Technology
Exercise :: Polymer Technology - Section 4
1. |
Identify the group in which all the polymers mentioned can be used to make fibres. |
A. |
Butadiene copolymers, Polyamides, Urea aldehyde | B. |
Cellulose derivatives, Polyisoprene, Polyethylene | C. |
Cellulose derivatives, Polyamides, Polyurathane | D. |
Polypropylene, Poly vinyl chloride, Silicon |
Answer: Option B
Explanation:
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2. |
Molecular weights of plastics ranges from |
A. |
1000 to 5000 | B. |
5000 to 1000 | C. |
20000 to 25000 | D. |
109 to l011 |
Answer: Option C
Explanation:
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3. |
Non sulphonated hard bakelites are not used for making |
A. |
ion-exchange resins | B. |
fountain pen barrels | C. |
formica table tops | D. |
combs |
Answer: Option A
Explanation:
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4. |
Which of the following is not present in bagasse fibre ? |
A. |
Cellulose | B. |
Lignin | C. |
Pentogens | D. |
None of these |
Answer: Option D
Explanation:
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5. |
Epoxy resin is |
A. |
not used for surface coating. | B. |
a good abrasive. | C. |
an elastomer. | D. |
a polyester. |
Answer: Option B
Explanation:
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