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MCQs

Total Questions : 1622 | Page 3 of 163 pages
Question 21. True boiling point apparatus is used for the
  1.    Determination of characterisation factor
  2.    Evaluation of oil stocks
  3.    Determination of true vapour pressure
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 22. Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm.
  1.    5
  2.    10
  3.    25
  4.    100
 Discuss Question
Answer: Option C. -> 25
Question 23. Smoke point of kerosene expresses its
  1.    Burning characteristics
  2.    Luminosity characteristics
  3.    Aromatic content directly
  4.    Lamp wick wetting characteristics
 Discuss Question
Answer: Option A. -> Burning characteristics
Question 24. Mercapsol and Unisol processes are meant for the
  1.    Dearomatisation of kerosene
  2.    Removal of mercaptans
  3.    Dewaxing
  4.    Decoloration
 Discuss Question
Answer: Option B. -> Removal of mercaptans
Question 25. Older crude petroleum
  1.    Is light and better
  2.    Gives more distillates
  3.    Gives less tar
  4.    All of the above
 Discuss Question
Answer: Option B. -> Gives more distillates
Question 26. Olefins are
  1.    Saturated hydrocarbons
  2.    Unsaturated cyclic compounds (hydrocarbons)
  3.    Present in substantially good quantity in crude petroleum
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 27. Which of the following is not a sulphur compound present in petroleum ?
  1.    Thiophenes
  2.    Mercaptans
  3.    Sulphones
  4.    Pyroles
 Discuss Question
Answer: Option D. -> Pyroles
Question 28. The doctor's solution comprises of sodium plumbite in
  1.    Alcohal
  2.    Water
  3.    Aqueous caustic soda
  4.    Soda ash
 Discuss Question
Answer: Option C. -> Aqueous caustic soda
Question 29. Deoiling is the process of removal of oil from wax. It is done by the __________ process.
  1.    Solvent extraction
  2.    Sweating
  3.    Resettling
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 30. A good lubricant should have high
  1.    Viscosity index
  2.    Volatility
  3.    Pour point
  4.    None of these
 Discuss Question
Answer: Option A. -> Viscosity index

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