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MCQs

Total Questions : 1622 | Page 6 of 163 pages
Question 51. Clay treatment of petroleum products
  1.    Decolorises & stabilises cracked gasoline
  2.    Desulphurise straight run gasoline & kerosene
  3.    Adsorb arsenic from feedstock to catalytic reforming
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 52. Which one is preferred for aircraft engine?
  1.    High viscosity index lube oil
  2.    Low viscosity index lube oil
  3.    High freezing point aviation fuel
  4.    None of these
 Discuss Question
Answer: Option A. -> High viscosity index lube oil
Question 53. Reforming
  1.    Uses naphtha as feedstock
  2.    Does not much affect the molecular weight of the feed
  3.    Improves the quality & yield of gasoline
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 54. Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.
  1.    1
  2.    5
  3.    15
  4.    25
 Discuss Question
Answer: Option B. -> 5
Question 55. Reforming converts
  1.    Olefins into paraffins
  2.    Naphthenes into aromatics
  3.    Naphthenes into olefins
  4.    Naphthenes into paraffin
 Discuss Question
Answer: Option B. -> Naphthenes into aromatics
Question 56. Presence of sulphur in gasoline
  1.    Leads to corrosion
  2.    Increases lead susceptibility
  3.    Decreases gum formation
  4.    Helps during stabilisation
 Discuss Question
Answer: Option A. -> Leads to corrosion
Question 57. Which of the following constituents present in petroleum is responsible for ash formation?
  1.    Nitrogen compounds
  2.    Organometallic compounds
  3.    Sulphur compounds
  4.    Oxygen compounds
 Discuss Question
Answer: Option C. -> Sulphur compounds
Question 58. Which of the following factors does not govern the mechanism of petroleum formation from organic sources?
  1.    PH of the soil
  2.    Bacterial action
  3.    Heat
  4.    Pressure
 Discuss Question
Answer: Option A. -> PH of the soil
Question 59. Higher viscosity of lubricating oil usually signifies
  1.    Lower Reid vapour pressure
  2.    Higher acid number
  3.    Higher flash point and fire point
  4.    Lower flash point and fire point
 Discuss Question
Answer: Option C. -> Higher flash point and fire point
Question 60. The most widely used crude topping column in refineries is the __________ column.
  1.    Bubble-cap
  2.    Packed bed
  3.    Fluidised bed
  4.    Perforated plate
 Discuss Question
Answer: Option A. -> Bubble-cap

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