Polymer Fiber Technology Multiple Choice Questions - Set 14 - ObjectiveBooks
Polymer Fiber Technology Multiple Choice Questions - Set 14

Polymer Fiber Technology Multiple Choice Questions - Set 14

Practice Test: Question Set - 14

1. Thiokol is nothing but
    (A) Polysulphide rubber
    (B) Polyamide fibre
    (C) Engineering plastic
    (D) Expanded polystyrene
2. Which of the following is not a natural polymer?
    (A) Nucleic acids e.g. RNA and DNA
    (B) Polysaccharides
    (C) Polyisoprene
    (D) Polyurethane
3. Crystallization of polymers is an undesirable property. Crystallization of celluloid is prevented by adding
    (A) Glycerol
    (B) Nitro cellulose
    (C) Camphor
    (D) None of these
4. Flexible foam (for mattresses) are usually made of
    (A) PVC
    (B) Silicone rubber
    (C) Polyurethanes
    (D) Polyamides
5. Neoprene is a
    (A) Monomer
    (B) Synthetic rubber
    (C) Polyester
    (D) None of these
6. Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.
    (A) Acrylic
    (B) Polyester
    (C) Nylon 6:6
    (D) Polypropylene
7. Polymerization of poly functional monomers produces polymers having
    (A) Good mechanical strength
    (B) Low viscosity
    (C) Low melting point
    (D) None of these
8. Polycaprolactam is also known as
    (A) Nylon-66
    (B) Nylon-6
    (C) Teflon
    (D) SBR
9. β - glucose is the monomer of
    (A) Cellulose
    (B) Starch
    (C) Protein
    (D) None of these
10. The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimizes the danger from flying glass fragments) is
    (A) Polyvinyl alcohol
    (B) Polyvinyl acetate
    (C) Polyvinyl butyral
    (D) PVC
11. __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerization to produce SBR.
    (A) Percent elongation
    (B) Resilience
    (C) Freezing point
    (D) Strength
12. Phthalic anhydride is used
    (A) In making PVC
    (B) As plasticizers
    (C) In insecticides manufacture
    (D) For making nylon-6
13. __________ is a homopolymer.
    (A) Neoprene
    (B) Bakelite
    (C) Nylon-66
    (D) Terylene
14. The generic chemical name for the class of polymers which are commercially known as nylons is
    (A) Polyolefins
    (B) Polyamide
    (C) Polyacrylate
    (D) Polyurethane
15. Acrylonitrile is mainly used in the __________ industry.
    (A) Polymer
    (B) Printing
    (C) Dyeing
    (D) Photographic
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