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MCQs

Total Questions : 61 | Page 5 of 7 pages
Question 41. What is the boiling temperature of petrol?
  1.    40-120°C
  2.    120-180°C
  3.    180-250°C
  4.    250-320°C
 Discuss Question
Answer: Option B. -> 120-180°C
Answer: (b).120-180°C
Question 42. Which fuel/oil is used for obtaining gasoline?
  1.    Kerosene
  2.    Diesel
  3.    Heavy
  4.    Naphtha
 Discuss Question
Answer: Option C. -> Heavy
Answer: (c).Heavy
Question 43. How is crude oil separated?
  1.    Crystallization
  2.    Fractional distillation
  3.    Decantation
  4.    Sublimation
 Discuss Question
Answer: Option B. -> Fractional distillation
Answer: (b).Fractional distillation
Question 44. What type of gas is LPG?
  1.    Gasoline
  2.    Kerosene
  3.    Uncondensed
  4.    Heavy oil
 Discuss Question
Answer: Option C. -> Uncondensed
Answer: (c).Uncondensed
Question 45. Which of the following is not used as a lubricant?
  1.    Lubricating oil
  2.    Grease
  3.    Asphalt
  4.    Petroleum jelly
 Discuss Question
Answer: Option C. -> Asphalt
Answer: (c).Asphalt
Question 46. For how long must coke be burnt?
  1.    2-3 hours
  2.    6-8 hours
  3.    18-24 hours
  4.    30-36 hours
 Discuss Question
Answer: Option D. -> 30-36 hours
Answer: (d).30-36 hours
Question 47. What is the appearance of oven coke?
  1.    Bluish-green
  2.    Reddish-brown
  3.    Dark grey to light silver
  4.    Matte black
 Discuss Question
Answer: Option C. -> Dark grey to light silver
Answer: (c).Dark grey to light silver
Question 48. Which of the following is not an advantage of coke over coal?
  1.    Purity
  2.    Porosity
  3.    Low smoke
  4.    Water
 Discuss Question
Answer: Option A. -> Purity
Answer: (a).Purity
Question 49. What is the temperature at which low-temperature coke is prepared?
  1.    100-250°C
  2.    250-400°C
  3.    450-700°C
  4.    750-1000°C
 Discuss Question
Answer: Option C. -> 450-700°C
Answer: (c).450-700°C
Question 50. Which of the following factors are not used to evaluate the quality of coke?
  1.    Size and shape
  2.    Moisture
  3.    Ignitability
  4.    Electrical resistivity
 Discuss Question
Answer: Option D. -> Electrical resistivity
Answer: (d).Electrical resistivity

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