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MCQs

Total Questions : 1622 | Page 16 of 163 pages
Question 151. Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg.
  1.    600-750
  2.    250-350
  3.    1000-1500
  4.    2000-2500
 Discuss Question
Answer: Option A. -> 600-750
Question 152. Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with
  1.    Methyl alcohol
  2.    Ethyl alcohol
  3.    Methane
  4.    Ethane
 Discuss Question
Answer: Option A. -> Methyl alcohol
Question 153. Pick out the undesirable property for a solvent meant for dewaxing of lube oil.
  1.    Complete miscibility with oil
  2.    High solubility of wax in the solvent
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A & B
Question 154. Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
  1.    Bauxite
  2.    Fuller's earth
  3.    Activated clay
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 155. Pick out the wrong statement.
  1.    Higher temperature is employed in visbreaking than in thermal cracking
  2.    Pyrolysis is a mild thermal cracking process
  3.    Lead suceptibility of petrol produced by catalytic process is more than that produced by thermal cracking
  4.    Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process
 Discuss Question
Answer: Option A. -> Higher temperature is employed in visbreaking than in thermal cracking
Question 156. Catalyst used in isomerisation process is
  1.    H₂SO₄
  2.    H₃PO₄
  3.    HF
  4.    AlCl3
 Discuss Question
Answer: Option D. -> AlCl3
Question 157. Paraffin base crude oil as compared to asphalt base crude gives
  1.    Higher yield of straight run gasoline
  2.    Higher octane number gasoline
  3.    Lower viscosity index lube oil
  4.    Poorer yield of lube oil
 Discuss Question
Answer: Option A. -> Higher yield of straight run gasoline
Question 158. Feed for reforming is generally
  1.    Naphtha or straight run gasoline
  2.    Reduced crude
  3.    Vacuum gas oil
  4.    Atmospheric gas oil
 Discuss Question
Answer: Option A. -> Naphtha or straight run gasoline
Question 159. Straight run petrol as compared to methyl/ethyl alcohol has
  1.    Lower calorific value
  2.    Lower octane number
  3.    Higher specific gravity
  4.    Higher ignition temperature
 Discuss Question
Answer: Option B. -> Lower octane number
Question 160. Feedstock for polymerisation is
  1.    Naphtha
  2.    Cracked gases rich in C₂ & C₄ olefins
  3.    Low boiling aromatics
  4.    None of these
 Discuss Question
Answer: Option B. -> Cracked gases rich in C₂ & C₄ olefins

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