Polymer Technology Interview Questions - Set 04 - ObjectiveBooks

Polymer Technology Interview Questions - Set 04

Practice Test: Question Set - 04

1. Identify the group in which all the polymers mentioned can be used to make fibres.
    (A) Butadiene copolymers, Polyamides, Urea-formaldehyde
    (B) Cellulose derivatives, Polyisoprene, Polyethylene
    (C) Cellulose derivatives, Polyamides, Polyurethane
    (D) Polypropylene, Poly vinyl chloride, Silicon

2. Nylon-6 as compared to nylon 66 has lower
    (A) Abrasion resistance
    (B) Thermal stability
    (C) Adhesion to rubber
    (D) Hardness

3. Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
    (A) Ammonium alum
    (B) Potassium alum
    (C) Both ‘a’ & ‘b’
    (D) Neither ‘a’ nor ‘b’

4. Which of the following is not a thermoplastic material?
    (A) Epoxy polymer
    (B) PVC
    (C) Polystyrene
    (D) Polythene

5. Which of the following types of polymers has the strongest inter particle forces?
    (A) Elastomers
    (B) Fibres
    (C) Thermoplastics
    (D) Thermosetting polymers

6. Addition polymerisation is not involved in the manufacture of
    (A) Low density polythene
    (B) Poly vinyl chloride
    (C) Polystyrene
    (D) Polyhexamethylene adipamide

7. Mastication of rubber means
    (A) Its softening
    (B) A treatment to retard its deterioration due to oxidation
    (C) Improving its curing rate
    (D) Depression of its freezing point

8. Amino resins are used in paper treatment to improve its
    (A) Wet tear and bursting strength
    (B) Folding endurance
    (C) Wet rub resistance
    (D) All (a), (b) & (c)

9. Polythene is a/an
    (A) Addition polymerisation product
    (B) Condensation polymerisation product
    (C) Thermosetting material
    (D) None of these

10. Addition of stabiliser during PVC manufacture is done to
    (A) Improve its impact strength
    (B) Improve its elasticity
    (C) Reduce the melt viscosity & glass transition temperature
    (D) Prevent its thermal degradation

11. Neoprene is the trade name of
    (A) Polyurethane
    (B) Phenol formaldehyde
    (C) Polychlorophrene
    (D) Styrene butadiene rubber (SBR)

12. __________ are produced by reacting polybasic acid (e.g. Phthalic anhydride) with polyhydric alcohol (e.g., glycerol).
    (A) Unsaturated polyester
    (B) Alkyd resins
    (C) Saturated polyester
    (D) Amino resins

13. __________ polymer is used for making unbreakable crockery.
    (A) Thermoplastic
    (B) Melamine
    (C) Addition
    (D) None of these

14. Maximum consumption of polymers is in
    (A) Electrical insulation
    (B) Toys making
    (C) Coating and films
    (D) Packaging

15. The synthetic fibres produced from __________ are known as rayon.
    (A) Lignin
    (B) Cellulose
    (C) Polyamides
    (D) Ethylene glycol

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