Patroleum Refinary Engineering MCQs with answers Page - 10

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Q. Which of the following has the highest octane number?

  • (A) Aromatics
  • (B) I-paraffins
  • (C) Naphthenes
  • (D) Olefins

A

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Q. Asphalts are

  • (A) Low molecular weight & low boiling point compounds present in petroleum
  • (B) Desirable in catalytic cracking feedstock, because they produce coke
  • (C) Readily oxidisable and form carbonaceous sludge
  • (D) All of the above

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Q. Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene?

  • (A) Reforming
  • (B) Pyrolysis
  • (C) Alkylation
  • (D) Hydrocracking

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Q. Clay treatment is used to remove

  • (A) Salt from the crude oil
  • (B) Colour & dissolved gases from cracked gasoline
  • (C) Wax from lube oil
  • (D) None of these

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Q. Pick out the correct statement about catalytic polymerisation.

  • (A) H2SO4 polymerisation process gives gasoline rich in unsaturates
  • (B) In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive
  • (C) Both A & B
  • (D) Neither A nor B

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Q. Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.

  • (A) 50
  • (B) 70
  • (C) 90
  • (D) 140

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Q. Water content in the crude oil as it comes out of oil well may be upto _________ percent.

  • (A) 2
  • (B) 5
  • (C) 10
  • (D) 25

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