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  • Question

  • Smoke point of kerosene is the


  • Options
  • A. time after which smoking starts on burning.
  • B. temperature at which smoking starts.
  • C. maximum height of flame (in mm) without causing smoking, when burnt in a standard lamp.
  • D. none of these.

  • Correct Answer
  • temperature at which smoking starts. 

    • Petroleum Refinery Engineering problems

    Search Results

    • 1. Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke?

    • Options
    • A. Naphtha
    • B. Vacuum residue
    • C. Light gas oil
    • D. Diesel
      • Discuss
    • 2. Carbon percentage (by weight) in crude petroleum may be about

    • Options
    • A. 65
    • B. 75
    • C. 85
    • D. 95
      • Discuss
    • 3. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.

    • Options
    • A. 4
    • B. 10
    • C. 18
    • D. 26
      • Discuss
    • 4. Higher pressure in the reforming reactor

    • Options
    • A. increases coke formation.
    • B. increases the rate of reaction.
    • C. produces high octane number gasoline.
    • D. none of these.
      • Discuss
    • 5. Ethyl mercaptan is a/an __________ compound.

    • Options
    • A. sulphur
    • B. nitrogen
    • C. oxygen
    • D. none of these
      • Discuss
    • 6. Which of the following is the most suitable feed for platforming process (reforming)?

    • Options
    • A. Olefinic hydrocarbon
    • B. Naphtha
    • C. Fuel oil
    • D. Atmospheric residue
      • Discuss
    • 7. Boiling range of motor gasoline is an indication of the

    • Options
    • A. case of starting
    • B. rate of acceleration
    • C. vapour locking tendency
    • D. all (a), (b) and (c)
      • Discuss
    • 8. Naphthenic acid is represented by

    • Options
    • A. CnH2n+2O2
    • B. CnH2n-2O2
    • C. CnH2n+2O2 (n ? 6)
    • D. CnH2n+6O2 (n ? 6)
      • Discuss
    • 9. Reid vapour pressure of gasoline is the measure of its

    • Options
    • A. pour point
    • B. cloud point
    • C. vapour locking tendency
    • D. carbon residue
      • Discuss
    • 10. Diesel index is defined as

    • Options
    • A. (°API) x (Aniline Point, °F)/100
    • B. (°API) x (Aniline Point, °C)/100
    • C. (°API) x (100)/Aniline Point, °F
    • D. (°API) x (100)/Aniline Point, °C
      • Discuss

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