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MCQs

Total Questions : 1113 | Page 1 of 112 pages
Question 1. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
  1.    Polythene
  2.    PVC
  3.    Rayon
  4.    Polyvinyl acetate
 Discuss Question
Answer: Option B. -> PVC
Question 2. Vulcanisation of raw rubber makes it
  1.    Soft
  2.    Less elastic
  3.    Plastic
  4.    Tacky
 Discuss Question
Answer: Option B. -> Less elastic
Question 3. Perspex can be used as a substitute of glass. Its monomer is
  1.    Methyl methacrylate
  2.    DMT
  3.    Butadiene
  4.    Tetrafluroethylene
 Discuss Question
Answer: Option A. -> Methyl methacrylate
Question 4. Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?
  1.    PVC
  2.    Bakelite
  3.    PTFE
  4.    Epoxy resin
 Discuss Question
Answer: Option A. -> PVC
Question 5. Starting material for the production of SBR is
  1.    Ethyl alcohol
  2.    Ethylene
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A & B
Question 6. Which of the following polymers does not belong to the class of polyacrylate polymer?
  1.    PMMA
  2.    Polyacrylonitrile
  3.    Polyethyl acrylate
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 7. __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
  1.    Epoxy
  2.    Amino
  3.    Alkyd
  4.    Phenolic
 Discuss Question
Answer: Option B. -> Amino
Question 8. Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its
  1.    Tensile strength
  2.    Chemical resistance
  3.    Flexibility
  4.    All of the above
 Discuss Question
Answer: Option C. -> Flexibility
Question 9. 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
 Discuss Question
Answer: Option B. -> Nylon-66
Question 10. Linear polymers are normally
  1.    Thermosetting
  2.    Thermosplastic
  3.    Elastometric
  4.    Having extremely high softening point
 Discuss Question
Answer: Option B. -> Thermosplastic

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