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MCQs

Total Questions : 66 | Page 4 of 7 pages
Question 31. What is the formula for Bohr magneton?What Is The Formula For Bohr Magneton?
  1.    a
  2.    b
  3.    c
  4.    d
 Discuss Question
Answer: Option A. -> a
Answer: (a).a
Question 32. Which of the following is both a good electrical insulator and thermal conductor?
  1.    Diamond
  2.    Copper
  3.    Tin
  4.    Asbestos
 Discuss Question
Answer: Option A. -> Diamond
Answer: (a).Diamond
Question 33. Cellular concrete is used for ______ insulation.
  1.    Thermal
  2.    Chemical
  3.    Sound
  4.    Electrical
 Discuss Question
Answer: Option C. -> Sound
Answer: (c).Sound
Question 34. Which of the following is an application of asbestos?
  1.    Fireproofing
  2.    Conduction of heat
  3.    X-ray tubes
  4.    Optical glass
 Discuss Question
Answer: Option A. -> Fireproofing
Answer: (a).Fireproofing
Question 35. The insulating materials resist degradation by stability against chemical reaction over ________
  1.    Temperature and oxygen
  2.    Temperature and pressure
  3.    Pressure and density
  4.    Oxygen and pressure
 Discuss Question
Answer: Option A. -> Temperature and oxygen
Answer: (a).Temperature and oxygen
Question 36. Which insulating material does a combination of magnesium oxychloride and gelatin produce?
  1.    Pearlite
  2.    Vermiculite
  3.    Cellular concrete
  4.    Acoustic plaster
 Discuss Question
Answer: Option D. -> Acoustic plaster
Answer: (d).Acoustic plaster
Question 37. What kind of mineral is Chrysotile?
  1.    Glass
  2.    Asbestos
  3.    Diamond
  4.    Cork
 Discuss Question
Answer: Option B. -> Asbestos
Answer: (b).Asbestos
Question 38. Which is of following is not an asbestos mineral?
  1.    Actinolite
  2.    Amosite
  3.    Crocidolite
  4.    Pyroceram
 Discuss Question
Answer: Option D. -> Pyroceram
Answer: (d).Pyroceram
Question 39. Which of the following is a characteristic of asbestos minerals?
  1.    Poor strength
  2.    Heat resistance
  3.    Poor bonding
  4.    Reacts with acids
 Discuss Question
Answer: Option B. -> Heat resistance
Answer: (b).Heat resistance
Question 40. What is the specific heat of Chrysotile?
  1.    0.033
  2.    0.266
  3.    0.469
  4.    0.788
 Discuss Question
Answer: Option B. -> 0.266
Answer: (b).0.266

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