Patroleum Refinary Engineering MCQs with answers Page - 6

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A

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Q. Cracking is

  • (A) An exothermic reaction
  • (B) An endothermic reaction
  • (C) Favoured at very low temperature
  • (D) None of these

A

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Q. During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.

  • (A) Decreases
  • (B) Increases
  • (C) Remains unchanged
  • (D) Decreases linearly

A

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Q. Aromatics are desired constituents of

  • (A) Lubricating oil
  • (B) Diesel
  • (C) Kerosene
  • (D) Petrol

A

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Q. Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

  • (A) Gives higher yield of petrol
  • (B) Lower octane number of petrol
  • (C) Higher sulphur content in the product
  • (D) Higher gum forming material in petrol

A

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Q. The main use of heavy gas oil produced by the vacuum distillation unit is as a

  • (A) Blending component for kerosene
  • (B) Blending component for petrol
  • (C) Feedstock for fluid catalytic cracking unit
  • (D) None of these

A

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Q. __________ determination is not a very significant and important test for gasoline.

  • (A) Gum & sulphur content
  • (B) Viscosity
  • (C) Reid vapor pressure
  • (D) Octane number

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Q. Catalyst used in the catalytic cracking is

  • (A) Silica-alumina
  • (B) Silica gel
  • (C) Vanadium pentoxide
  • (D) Nickel

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Q. Naphthenic acid is a/an __________ compound.

  • (A) Sulphur
  • (B) Nitrogen
  • (C) Oxygen
  • (D) None of these

A

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Q. The reservoir rock containing petroleum has

  • (A) Low porosity
  • (B) High permeability
  • (C) High porosity
  • (D) Both B and C

A

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Q. Sour crude means the __________ bearing crude.

  • (A) Asphalt
  • (B) Sulphur compounds
  • (C) Wax
  • (D) Nitrogen compounds

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