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MCQs

Total Questions : 515 | Page 50 of 52 pages
Question 491. Polycaprolactum is also known as
  1.    nylon-66
  2.    nylon-6
  3.    teflon
  4.    SBR
 Discuss Question
Answer: Option B. -> nylon-6
Answer: (b).nylon-6
Question 492. The major component of acrylic fibres is
  1.    polyamides
  2.    polyolefins
  3.    polyacrylonitrile
  4.    polyesters
 Discuss Question
Answer: Option C. -> polyacrylonitrile
Answer: (c).polyacrylonitrile
Question 493. Which of the following polymers is used for making a non stick coating on frying pans ?
  1.    Bakelite
  2.    Teflon
  3.    Perspex
  4.    PVC
 Discuss Question
Answer: Option B. -> Teflon
Answer: (b).Teflon
Question 494. __________ scrap can be recycled & reutilised.
  1.    Bakelite
  2.    Epoxy resin
  3.    Polythene
  4.    none of these
 Discuss Question
Answer: Option C. -> Polythene
Answer: (c).Polythene
Question 495. 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
Answer: (d).None of these
Question 496. A copolymer of vinyl and vinylidine chloride is called
  1.    treylene
  2.    orlon
  3.    saran
  4.    dacron
 Discuss Question
Answer: Option C. -> saran
Answer: (c).saran
Question 497. Elastomers are
  1.    thermosetting material.
  2.    exemplified by protein derivatives.
  3.    having high flexural strength.
  4.    having very high tensile strength and heat resistance.
 Discuss Question
Answer: Option C. -> having high flexural strength.
Answer: (c).having high flexural strength.
Question 498. Ebonite is a/an
  1.    highly vulcanised rubber.
  2.    natural rubber.
  3.    unvulcanised raw rubber.
  4.    adhesive.
 Discuss Question
Answer: Option A. -> highly vulcanised rubber.
Answer: (a).highly vulcanised rubber.
Question 499. Paper like thin plastic articles can be produced by
  1.    blow moulding
  2.    vacuum thermo forming
  3.    injection moulding
  4.    none of these
 Discuss Question
Answer: Option B. -> vacuum thermo forming
Answer: (b).vacuum thermo forming
Question 500. Which of the following additives are added to plastics to make it impervious to X-rays ?
  1.    Asbestos
  2.    Barium salt
  3.    Carborundum
  4.    Phthalic acid
 Discuss Question
Answer: Option B. -> Barium salt
Answer: (b).Barium salt

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