Polymer Technology

251. Which of the following is a polymer of Hexamethylene diamine and adipic acid?

1. Nylon-6
2. Nylon-66
3. Nylon-6, 10
4. Epoxy resin

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252. Which of the following is an elastomer?

1. Thiokol
2. Phenol formaldehyde
3. Urea formaldehyde
4. Polystyrene

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253. Which of the following is an inorganic polymer?

1. Teflon
2. Perspex
3. Silicones
4. Bakelite

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254. Which of the following is generally not drawn into fibre?

1. Polyamide
2. Unsaturated polyesters
3. Saturated polyesters
4. Polyacrylonitrile

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255. Which of the following is generally not used as eord for synthetic rubber tyre casing?

1. Dacron
2. Nylon
3. Cellulose
4. None of these

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256. Which of the following is not a condensation polymer?

1. Bakelite
2. Melamine polymer
3. Poly-methyl-methacrylate (PMMA)
4. None of these

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257. Which of the following is not a natural fibre?

1. Silk
2. Viscose rayon
3. Wool
4. Cotton

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258. Which of the following is not a natural polymer?

1. Nucleic acids e.g. RNA and DNA
2. Polysaccharides
3. Polyisoprene
4. Polyurethane

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259. Which of the following is not a polymer of two monomers?

1. Teflon
2. Bakelite
3. SBR
4. None of these

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260. Which of the following is not a polyolefin?

1. Polystyrene
2. Polypropylene
3. Neoprene
4. None of these

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