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MCQs

Total Questions : 1622 | Page 17 of 163 pages
Question 161. The first crude oil refinery of India is located at
  1.    Naharkatiya
  2.    Digboi
  3.    Kochin
  4.    Madras
 Discuss Question
Answer: Option B. -> Digboi
Question 162. High aniline point of a petrofuel (say diesel) indicates that
  1.    It is highly aromatic in nature
  2.    It is highly paraffinic in nature
  3.    It has a very low diesel index
  4.    Its ignition quality is very poor
 Discuss Question
Answer: Option B. -> It is highly paraffinic in nature
Question 163. Aniline point of high speed diesel may be about __________ °C.
  1.    35
  2.    70
  3.    105
  4.    150
 Discuss Question
Answer: Option B. -> 70
Question 164. In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction
  1.    Heavy distillates
  2.    Intermediate distillates
  3.    Light ends
  4.    Residues
 Discuss Question
Answer: Option A. -> Heavy distillates
Question 165. Cetane number of diesel used in trucks may be about
  1.    50
  2.    14
  3.    35
  4.    85
 Discuss Question
Answer: Option A. -> 50
Question 166. Doctor's solution used for sweetening of petroleum products is
  1.    Sodium plumbite
  2.    Sodium sulphite
  3.    Sodium thiosulphate
  4.    Lead sulphate
 Discuss Question
Answer: Option A. -> Sodium plumbite
Question 167. Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
  1.    Thermal cracking
  2.    Gum formation
  3.    Coking
  4.    Discoloration
 Discuss Question
Answer: Option C. -> Coking
Question 168. The octane number of aviation gasoline may be
  1.    79
  2.    87
  3.    97
  4.    >100
 Discuss Question
Answer: Option D. -> >100
Question 169. Phenols are added in gasoline to
  1.    Improve the octane number
  2.    Act as an antioxidant
  3.    Reduce its viscosity
  4.    Increase its pour point
 Discuss Question
Answer: Option B. -> Act as an antioxidant
Question 170. __________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation.
  1.    Magnesium
  2.    Potassium
  3.    Calcium
  4.    Sodium
 Discuss Question
Answer: Option A. -> Magnesium

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