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MCQs

Total Questions : 57 | Page 3 of 6 pages
Question 21. The polishing of cast iron and finishing of stainless steels are applications of ______
  1.    Silicon carbide
  2.    Boron carbide
  3.    Tungsten carbide
  4.    Aluminum oxide
 Discuss Question
Answer: Option D. -> Aluminum oxide
Answer: (d).Aluminum oxide
Question 22. The ability of a material to exist in more than one crystal structure is known as _______
  1.    Polymorphism
  2.    Allotropy
  3.    Polyhedral phase
  4.    Lattice
 Discuss Question
Answer: Option A. -> Polymorphism
Answer: (a).Polymorphism
Question 23. Conversion of a tetrahedral unit into a three-dimensional structure gives a ______ structure.
  1.    Vitreous
  2.    Sheet
  3.    Chain
  4.    Framework
 Discuss Question
Answer: Option D. -> Framework
Answer: (d).Framework
Question 24. What is the composition of a double tetrahedral structure?
  1.    SiO₄
  2.    Si₂O₇
  3.    Si₃O₉
  4.    Si₅O₉
 Discuss Question
Answer: Option B. -> Si₂O₇
Answer: (b).Si₂O₇
Question 25. Quartz and Feldspar are examples having ______ structure
  1.    Tetrahedron
  2.    Sheet
  3.    Poly tetrahedral
  4.    Framework
 Discuss Question
Answer: Option D. -> Framework
Answer: (d).Framework
Question 26. Which of the following structures represents that of a fiber composite?Which Of The Following Structures Represents That Of A Fiber...
  1.    a
  2.    b
  3.    c
  4.    d
 Discuss Question
Answer: Option C. -> c
Answer: (c).c
Question 27. Which silicate structure does the following diagram represent?Which Silicate Structure Does The Following Diagram Represen...
  1.    Tetrahedron
  2.    Poly-tetrahedral
  3.    Chain
  4.    Sheet
 Discuss Question
Answer: Option A. -> Tetrahedron
Answer: (a).Tetrahedron
Question 28. The below figure depicts the structure of ________ composite materials.The Below Figure Depicts The Structure Of ________ Composite...
  1.    Discontinuous
  2.    Aligned
  3.    Laminate
  4.    Dispersion-strengthened
 Discuss Question
Answer: Option C. -> Laminate
Answer: (c).Laminate
Question 29. How is the critical length or a composite material defined?How Is The Critical Length Or A Composite Material Defined?...
  1.    a
  2.    b
  3.    c
  4.    d
 Discuss Question
Answer: Option B. -> b
Answer: (b).b
Question 30. The below figure is an example of ______ type of structural composites.The Below Figure Is An Example Of ______ Type Of Structural ...
  1.    Laminar
  2.    Sandwich panel
  3.    Discontinuous
  4.    Randomly oriented
 Discuss Question
Answer: Option B. -> Sandwich panel
Answer: (b).Sandwich panel

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