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  • Question

  • Thermofer catalytic cracking process is a __________ process.


  • Options
  • A. fixed bed
  • B. moving bed
  • C. fluidised bed
  • D. non-catalytic

  • Correct Answer
  • non-catalytic 

    • Petroleum Refinery Engineering problems

    Search Results

    • 1. The main reaction in reforming is the

    • Options
    • A. dehydrogenation of naphthenes.
    • B. hydrogenation of naphthenes.
    • C. hydrocracking of paraffins.
    • D. saturation of olefins.
      • Discuss
    • 2. Which of the following reactions is undesirable in the production of catalytically reformed gasoline?

    • Options
    • A. Dehydrogenation of naphthene
    • B. Dehydrogenation of lower paraffins
    • C. Dehydrocyclisation of higher paraffins
    • D. Isomerisation of paraffins
      • Discuss
    • 3. The most important property for a jet fuel is its

    • Options
    • A. viscosity
    • B. freezing point
    • C. calorific value
    • D. flash point
      • Discuss
    • 4. Which of the following is the most important property for a jet fuel?

    • Options
    • A. Cloud point
    • B. Pour point
    • C. Colour
    • D. Freezing point
      • Discuss
    • 5. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.

    • Options
    • A. 1
    • B. 20
    • C. 100
    • D. 500
      • Discuss
    • 6. Which of the following has the minimum °API gravity of all?

    • Options
    • A. Diesel
    • B. Kerosene
    • C. Petrol
    • D. Furnace oil
      • Discuss
    • 7. Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.

    • Options
    • A. smoke point
    • B. paraffins
    • C. aromatics
    • D. naphthenes
      • Discuss
    • 8. Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).

    • Options
    • A. 5
    • B. 25
    • C. 50
    • D. 100
      • Discuss
    • 9. Which of the following is a non-regenerative fixed bed catalytic reforming process?

    • Options
    • A. Hydroforming
    • B. Thermofer catalytic reforming
    • C. Platforming
    • D. Hyperforming
      • Discuss
    • 10. A fuel oil consists of 4 fractions A, B, C and D. Their molar compositions and vapour pressures are given below :

      The vapour pressure of the fuel oil will be __________ mm Hg.

    • Options
    • A. 736
    • B. 727.5
    • C. 512
    • D. 767.8
      • Discuss

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