Polymer Based Technology Objective Questions - Set 09 - ObjectiveBooks

Polymer Based Technology Objective Questions - Set 09

Practice Test: Question Set - 09

1. Bristles of tooth brushes are made of
    (A) Nylon-6
    (B) Nylon-66
    (C) Polystyrene
    (D) PVC

2. Which of the following is not present in bagasse fibre?
    (A) Cellulose
    (B) Lignin
    (C) Pentogens
    (D) None of these

3. Most of the plastics are safe to be used upto a maximum temperature of __________ °C.
    (A) 100
    (B) 150
    (C) 350
    (D) 450

4. Which of the following is generally not used as eord for synthetic rubber tyre casing?
    (A) Dacron
    (B) Nylon
    (C) Cellulose
    (D) None of these

5. Contact lenses for eyes are made of Perspex, which is nothing but
    (A) Poly-methyl-methacrylate
    (B) Polystyrene
    (C) Unsaturated polyester
    (D) Polypropylene

6. Addition of plasticizers to polymers results in partial neutralization of intermolecular forces of attraction between the macro-molecules thereby increasing its
    (A) Tensile strength
    (B) Chemical resistance
    (C) Flexibility
    (D) All (a), (b) & (c)

7. Which of the following is not a polyolefin?
    (A) Polystyrene
    (B) Polypropylene
    (C) Neoprene
    (D) None of these

8. Neoprene is chemically known as
    (A) Polybutadiene
    (B) Styrene butadiene rubber (SBR)
    (C) Polyurethane
    (D) Poly chloroprene

9. Vulcanization of raw rubber makes it
    (A) Soft
    (B) Less elastic
    (C) Plastic
    (D) Tacky

10. Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
    (A) Epoxy resin
    (B) Polyamide
    (C) Alkyd resin
    (D) Phenolic resin

11. Poly-methyl-methacrylate, which is an acrylic resin, is also called
    (A) Thiokol
    (B) Plexiglass or Lucite
    (C) Dacron
    (D) Teflon

12. Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces
    (A) Nylon-6
    (B) Dacron
    (C) Polyester
    (D) PVC

13. Alkyd resin cannot be used for making
    (A) Plasticiser
    (B) Paint & varnish
    (C) Fibres
    (D) Film forming materials

14. Polyvinyl chloride (PVC) is
    (A) A thermosetting material
    (B) A condensation polymerization product
    (C) Made by employing emulsion polymerization
    (D) None of these

15. Buna-N is also called
    (A) Butyl rubber
    (B) Nitrile rubber
    (C) Neoprene
    (D) Thiokol

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