Polymer Technology Online Course Questions - Set 17 - ObjectiveBooks

Polymer Technology Online Course Questions - Set 17

Practice Test: Question Set - 17

1. Nylon-66 is manufactured from
    (A) Adipic acid and Hexamethylene diamine
    (B) Caprolactam
    (C) Maleic anhydride and Hexamethylene diamine
    (D) Dimethyl terephthalate (DMT) and ethylene glycol

2. Collapsible tubes for tooth paste are produced by __________ extrusion.
    (A) Direct
    (B) Indirect
    (C) Impact
    (D) None of these

3. Properties of a polymer is affected by the
    (A) Chain length
    (B) Intermolecular forces
    (C) Both (a) and (b)
    (D) None of these

4. Which of the following polymers are produced by employing all bulk polymerization, solution polymerization & suspension polymerization technique of addition (chain) polymerization?
    (A) PVC
    (B) Bakelite
    (C) PTFE
    (D) Epoxy resin

5. In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
    (A) PTFE
    (B) Buna-S
    (C) PMMA
    (D) Polycaprolactam

6. Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their
    (A) Molecular sizes
    (B) Magnitude of intermolecular forces
    (C) Resistance to heat
    (D) Polymerization mechanism

7. In step growth polymerization, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerization product is
    (A) Terylene
    (B) Polybutadiene
    (C) PVC
    (D) Polypropylene

8. Terylene is a/an
    (A) Addition polymer
    (B) Poly amide
    (C) Homopolymer
    (D) None of these

9. Polycondensation reaction of polymerization
    (A) Does not produce linear polymers
    (B) Produces only thermoplastic material
    (C) Produces epoxy polymers
    (D) Does not need any catalyst

10. Polymethyl methacrylate (PMMA) which is also known as Perspex and is produced by bulk polymerization of methyl methacrylate is not a __________ polymer.
    (A) Thermoplastic
    (B) Thermosetting
    (C) Linear
    (D) Glass like transparent

11. Cellulose content in bamboo fibre is about __________ percent.
    (A) 10
    (B) 20
    (C) 50
    (D) 85

12. __________ is a copolymer.
    (A) Styrene butadiene rubber (SBR)
    (B) Neoprene
    (C) PVC
    (D) None of these

13. Pick out the wrong statement.
    (A) Addition polymers are generally formed by chain growth polymerization
    (B) Condensation polymers are generally formed by step growth polymerization
    (C) Teflon is formed by step growth polymerization
    (D) Bakelite is formed by step growth polymerization

14. Rain coats are made of
    (A) Neoprene
    (B) PVC
    (C) Polyurethane
    (D) SBR

15. Which of the following is generally not drawn into fibre?
    (A) Polyamide
    (B) Unsaturated polyesters
    (C) Saturated polyesters
    (D) Polyacrylonitrile

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