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MCQs

Total Questions : 66 | Page 5 of 7 pages
Question 41. What makes up the primary composition of glass?
  1.    MgO
  2.    K₂O
  3.    SiO₂
  4.    BaO
 Discuss Question
Answer: Option C. -> SiO₂
Answer: (c).SiO₂
Question 42. How is the magnetic induction of material defined?
  1.    Wb m⁻²
  2.    A m²
  3.    A m⁻²
  4.    H m⁻¹
 Discuss Question
Answer: Option A. -> Wb m⁻²
Answer: (a).Wb m⁻²
Question 43. How is magnetic moment determined?
  1.    Planck unit
  2.    Bohr magneton
  3.    Eddington number
  4.    Sommerfield number
 Discuss Question
Answer: Option B. -> Bohr magneton
Answer: (b).Bohr magneton
Question 44. How is the magnetic field strength defined?
  1.    Wb m⁻²
  2.    A m²
  3.    A m⁻²
  4.    H m⁻¹
 Discuss Question
Answer: Option C. -> A m⁻²
Answer: (c).A m⁻²
Question 45. The measure of the capacity of a material to produce its own magnetic field is defined as _______
  1.    Magnetic induction
  2.    Magnetization
  3.    Permeability
  4.    Magnetic moment
 Discuss Question
Answer: Option C. -> Permeability
Answer: (c).Permeability
Question 46. What is the permeability of free space?
  1.    4 * 10⁻⁶
  2.    4 * 10⁻⁷
  3.    4 * 10⁻⁸
  4.    4 * 10⁻⁹
 Discuss Question
Answer: Option B. -> 4 * 10⁻⁷
Answer: (b).4 * 10⁻⁷
Question 47. Isoprene added to isobutylene gives _______
  1.    Nitrile rubber
  2.    Butyl rubber
  3.    Polychloroprene rubber
  4.    Silicone rubber
 Discuss Question
Answer: Option B. -> Butyl rubber
Answer: (b).Butyl rubber
Question 48. Ruby mica is more commonly known as ______
  1.    Muscovite
  2.    Phlogopite
  3.    Urethane
  4.    Neoprene
 Discuss Question
Answer: Option A. -> Muscovite
Answer: (a).Muscovite
Question 49. Which of the following is not a method of fabrication of rubber?
  1.    Compression molding
  2.    Calendering
  3.    Buffing
  4.    Vacuum forming
 Discuss Question
Answer: Option C. -> Buffing
Answer: (c).Buffing
Question 50. What is the common name for polysulphide rubber?
  1.    Neoprene
  2.    Polyurethane
  3.    Thiokol
  4.    Hypalon
 Discuss Question
Answer: Option C. -> Thiokol
Answer: (c).Thiokol

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