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MCQs

Total Questions : 74 | Page 6 of 8 pages
Question 51. Liquid or gas polymers having short chains and low molecular weights are known as _____
  1.    High-polymers
  2.    Homopolymers
  3.    Copolymers
  4.    Oligo-polymers
 Discuss Question
Answer: Option D. -> Oligo-polymers
Answer: (d).Oligo-polymers
Question 52. A polymer made of identical monomer units is called ______
  1.    Homopolymer
  2.    Linear polymer
  3.    Copolymer
  4.    Branched polymer
 Discuss Question
Answer: Option A. -> Homopolymer
Answer: (a).Homopolymer
Question 53. The number of repeating units in a polymer is known as __________
  1.    monomer
  2.    degree of polymerization
  3.    molecule
  4.    chain
 Discuss Question
Answer: Option B. -> degree of polymerization
Answer: (b).degree of polymerization
Question 54. Which of the following types of polymers is a copolymer?
  1.    Graft
  2.    Network
  3.    Linear
  4.    Branched
 Discuss Question
Answer: Option A. -> Graft
Answer: (a).Graft
Question 55. How much volume of carbon black is used in automobile tires?
  1.    2-3%
  2.    8-10%
  3.    15-30%
  4.    45-50%
 Discuss Question
Answer: Option C. -> 15-30%
Answer: (c).15-30%
Question 56. Which molecular structure does the below figure represent?Which Molecular Structure Does The Below Figure Represent?
  1.    Linear
  2.    Branched
  3.    Cross-linked
  4.    Network
 Discuss Question
Answer: Option C. -> Cross-linked
Answer: (c).Cross-linked
Question 57. High-temperature strength of nickel alloys can be enhanced using dispersed particles of _______
  1.    Thorium
  2.    Arsenic
  3.    Bromide
  4.    Antimony
 Discuss Question
Answer: Option A. -> Thorium
Answer: (a).Thorium
Question 58. SAP composite stands for ______ composite
  1.    strengthened aluminum powder
  2.    sintered aluminum powder
  3.    strengthened ammonium particulate
  4.    sintered aluminum particulate
 Discuss Question
Answer: Option B. -> sintered aluminum powder
Answer: (b).sintered aluminum powder
Question 59. Which of the following cermet materials is used for rocket motor and jet-engine parts?
  1.    Tungsten carbide
  2.    Molybdenum carbide
  3.    Chromium oxide
  4.    Titanium bromide
 Discuss Question
Answer: Option C. -> Chromium oxide
Answer: (c).Chromium oxide
Question 60. Which of the following is not a stage of addition polymerization?
  1.    Initiation
  2.    Propagation
  3.    Termination
  4.    Recrystallisation
 Discuss Question
Answer: Option D. -> Recrystallisation
Answer: (d).Recrystallisation

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