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MCQs

Total Questions : 115 | Page 2 of 12 pages
Question 11. What is the value of emissivity for polished copper?
  1.    0.02
  2.    0.03
  3.    0.04
  4.    0.05
 Discuss Question
Answer: Option B. -> 0.03
Answer: (b).0.03
Question 12. What is the value of emissivity for tarnished copper?
  1.    0.78
  2.    0.77
  3.    0.76
  4.    0.75
 Discuss Question
Answer: Option D. -> 0.75
Answer: (d).0.75
Question 13. What is the value of emissivity for dull stainless steel?
  1.    0.24
  2.    0.23
  3.    0.22
  4.    0.21
 Discuss Question
Answer: Option D. -> 0.21
Answer: (d).0.21
Question 14. Which one is having the lowest emissivity?
  1.    Polished stainless steel
  2.    White marble
  3.    Snow
  4.    Asphalt
 Discuss Question
Answer: Option A. -> Polished stainless steel
Answer: (a).Polished stainless steel
Question 15. What is the value of emissivity for white marble?
  1.    0.96
  2.    0.95
  3.    0.94
  4.    0.93
 Discuss Question
Answer: Option B. -> 0.95
Answer: (b).0.95
Question 16. What is the dimension of the Schmidt number?
  1.    Newton
  2.    Meter
  3.    Celsius
  4.    It is a dimensional quantity
 Discuss Question
Answer: Option D. -> It is a dimensional quantity
Answer: (d).It is a dimensional quantity
Question 17. Schmidt number is given by the formula
  1.    2 D/v
  2.    v/D
  3.    D/v
  4.    2 v/D
 Discuss Question
Answer: Option B. -> v/D
Answer: (b).v/D
Question 18. Which one of the following is having the lowest value of Schmidt number?
  1.    Oxygen
  2.    Water
  3.    Benzene
  4.    Ethyl alcohol
 Discuss Question
Answer: Option B. -> Water
Answer: (b).Water
Question 19. What is the value of the Schmidt number for water?
  1.    0.62
  2.    0.61
  3.    0.60
  4.    0.59
 Discuss Question
Answer: Option C. -> 0.60
Answer: (c).0.60
Question 20. Which one of the following is having the highest value of Schmidt number?
  1.    Benzene
  2.    Carbon dioxide
  3.    Acetic acid
  4.    Ammonia
 Discuss Question
Answer: Option A. -> Benzene
Answer: (a).Benzene

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