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MCQs

Total Questions : 34 | Page 4 of 4 pages
Question 31. Which thermosetting resin is used in the mounting of the specimen in metallography?
  1.    Thiolyte
  2.    Bakelite
  3.    Silicone
  4.    Urea formaldehyde
 Discuss Question
Answer: Option B. -> Bakelite
Answer: (b).Bakelite
Question 32. Which thermoplastic resin is used for mounting a specimen in metallography?
  1.    Lucite
  2.    Polycarbonate
  3.    Polystyrene
  4.    Acetal copolymer polyoxymethylene
 Discuss Question
Answer: Option A. -> Lucite
Answer: (a).Lucite
Question 33. How much pressure is applied for molding of Bakelite during mounting?
  1.    1000 psi
  2.    2000 psi
  3.    4000 psi
  4.    6000 psi
 Discuss Question
Answer: Option C. -> 4000 psi
Answer: (c).4000 psi
Question 34. What is the effect of removing the mount while it is still hot?
  1.    Instability
  2.    Low strength
  3.    Rough finish
  4.    Opaque appearance
 Discuss Question
Answer: Option D. -> Opaque appearance
Answer: (d).Opaque appearance

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