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MCQs

Total Questions : 1622 | Page 9 of 163 pages
Question 81. Which of the following has the lowest viscosity (at a given temperature) of all?
  1.    Naphtha
  2.    Kerosene
  3.    Diesel
  4.    Lube oil
 Discuss Question
Answer: Option A. -> Naphtha
Question 82. Hydrofining is the most recent and effective method for the
  1.    Removal of sulphur
  2.    Improvement of smoke point
  3.    Reduction of breathing loss
  4.    Improvement of viscosity index
 Discuss Question
Answer: Option A. -> Removal of sulphur
Question 83. Which is the most desirable component of a good quality kerosene?
  1.    I-paraffins
  2.    Aromatics
  3.    N-paraffins
  4.    Naphthenes
 Discuss Question
Answer: Option C. -> N-paraffins
Question 84. High aniline point of diesel indicates that, it
  1.    Is highly aromatic
  2.    Has a large ignition delay
  3.    Is highly paraffinic
  4.    Has a low diesel index
 Discuss Question
Answer: Option C. -> Is highly paraffinic
Question 85. Catalyst used in the isomerisation is
  1.    Aluminium chloride
  2.    Alumina
  3.    Nickel
  4.    Phosphoric acid
 Discuss Question
Answer: Option A. -> Aluminium chloride
Question 86. Pick out the correct statement pertaining to catalytic cracking.
  1.    With increase in the reactor pressure, octane number of gasoline decreases
  2.    With increase in the reactor temperature, gasoline yield decreases for a given conversion
  3.    Percentage conversion increases with increase in the catalyst to oil ratio
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 87. Which of the following is the most important property for a jet fuel?
  1.    Cloud point
  2.    Pour point
  3.    Colour
  4.    Freezing point
 Discuss Question
Answer: Option D. -> Freezing point
Question 88. Which of the following is the most suitable feed for platforming process (reforming)?
  1.    Olefinic hydrocarbon
  2.    Naphtha
  3.    Fuel oil
  4.    Atmospheric residue
 Discuss Question
Answer: Option A. -> Olefinic hydrocarbon
Question 89. The coking process normally mostly used in Indian oil refineries is the __________ coking process.
  1.    Delayed
  2.    Flexi
  3.    Fluid
  4.    Contact
 Discuss Question
Answer: Option A. -> Delayed
Question 90. Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c).
  1.    One fourth
  2.    One third
  3.    Half
  4.    One eighth
 Discuss Question
Answer: Option C. -> Half

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