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MCQs

Total Questions : 115 | Page 5 of 12 pages
Question 41. Which one is having the highest melting point?
  1.    Bismuth
  2.    Beryllium
  3.    Cadmium
  4.    Copper pure
 Discuss Question
Answer: Option B. -> Beryllium
Answer: (b).Beryllium
Question 42. What is the melting point of germanium?
  1.    1211 K
  2.    1311 K
  3.    1411 K
  4.    1511 K
 Discuss Question
Answer: Option A. -> 1211 K
Answer: (a).1211 K
Question 43. Which one is having a minimum melting point?
  1.    Tin
  2.    Iron pure
  3.    Germanium
  4.    Gold
 Discuss Question
Answer: Option C. -> Germanium
Answer: (c).Germanium
Question 44. What is the melting point of palladium?
  1.    1527 K
  2.    1627 K
  3.    1727 K
  4.    1827 K
 Discuss Question
Answer: Option D. -> 1827 K
Answer: (d).1827 K
Question 45. What is the melting point of nichrome?
  1.    1572 K
  2.    1672 K
  3.    1772 K
  4.    1872 K
 Discuss Question
Answer: Option B. -> 1672 K
Answer: (b).1672 K
Question 46. In a gas mixture if molecular weights of all the species are equal than which one will be more, Mass average velocity or Molar average velocity?
  1.    Mass average velocity
  2.    Molar average velocity
  3.    Both will have the same value
  4.    Nothing definite can be said
 Discuss Question
Answer: Option C. -> Both will have the same value
Answer: (c).Both will have the same value
Question 47. The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk
Velocity of component A= (0.1, 0, 0)
Velocity of component B= (0, 0.1, 0)
Velocity of component B= (0, 0, 0.1)
Calculate the value of average molar velocity?
  1.    (0.021, 0.078, 0.01)
  2.    (0.1, 0.1, 0.1)
  3.    (0, 0 ,0)
  4.    (0.079, 0.021, 0.01)
 Discuss Question
Answer: Option A. -> (0.021, 0.078, 0.01)
Answer: (a).(0.021, 0.078, 0.01)
Question 48. Which among the following can be the unit of Flux?
  1.    Kg*m-2*s-1
  2.    Kg*m²*s-1
  3.    Kg*m²*s1
  4.    Kg*m*s2
 Discuss Question
Answer: Option A. -> Kg*m-2*s-1
Answer: (a).Kg*m-2*s-1
Question 49. For the calculation of Mass average velocity, which velocity of the molecule is used?
  1.    Instantaneous Velocity
  2.    Mean Velocity
  3.    Instantaneous Velocity as well as Mean Velocity
  4.    Bulk velocity of the mixture
 Discuss Question
Answer: Option B. -> Mean Velocity
Answer: (b).Mean Velocity
Question 50. The velocity of various components of mixture(21% A, 78% B and 1% C) are:
Velocity is in the form: v=xi+yj+zk
Velocity of component A= (0.1, 0, 0)
Velocity of component B= (0, 0.1, 0)
Velocity of component B= (0, 0, 0.1)
Calculate the value of mass average velocity?
  1.    (0.0235, 0.0764, 0.00007)
  2.    (0.021, 0.078, 0.01)
  3.    (0.1, 0.1 0.1)
  4.    (0.079, 0.021, 0.01)
 Discuss Question
Answer: Option A. -> (0.0235, 0.0764, 0.00007)
Answer: (a).(0.0235, 0.0764, 0.00007)

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