logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Petroleum Refinery Engineering Comments

  • Question
  • Diesel index.(an alternative index for expressing the quality of diesel) is


  • Options
  • A. determined by using a test engine.
  • B. not related to aniline point.
  • C. equal to cetane number plus 3.
  • D. all (a), (b) & (c).

  • Correct Answer
  • equal to cetane number plus 3. 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

    • Options
    • A. D
    • B. 1/D
    • C. D2.5
    • D. 1/D2.5
    • Discuss
    • 2. Tabular bowl centrifuges as compared to disk bowl centrifuges

    • Options
    • A. operate at higher speed.
    • B. employ bowl of larger diameter.
    • C. can not be operated under pressure/vacuum.
    • D. can't be used for separation of fine suspended solids from a liquid.
    • Discuss
    • 3. Jigging is a technique by which different particles can be

    • Options
    • A. separated by particle size.
    • B. separated by particle density.
    • C. separated by particle shape.
    • D. mixed.
    • Discuss
    • 4. The energy required per unit mass to grind limestone particles of very large size to 100 ?m is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 ?rn is

    • Options
    • A. 6.35 kWh/ton
    • B. 9.0 kWh/ton
    • C. 18 kWh/ton
    • D. 25.4 kWh/ton
    • Discuss
    • 5. Highly viscous liquids & pastes are agitated by

    • Options
    • A. propellers
    • B. turbine agitators
    • C. multiple blade paddles
    • D. none of these
    • Discuss
    • 6. __________ determination is not a very significant and important test for gasoline.

    • Options
    • A. Gum & sulphur content
    • B. Viscosity
    • C. Octane number
    • D. Reid vapor pressure
    • Discuss
    • 7. In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.

    • Options
    • A. sulphur increases
    • B. sulphur decreases
    • C. nitrogen decreases
    • D. none of these
    • Discuss
    • 8. Which of the following tests is not done for transformer oil?

    • Options
    • A. Flash point and acid value.
    • B. Aniline point.
    • C. Dielectric strength.
    • D. Copper strip corrosion test.
    • Discuss
    • 9. Solvent used in duo-sol extraction for lube oil upgradation is a mixture of

    • Options
    • A. propane & phenol-cresol mixture.
    • B. methyl ethyl ketone & glycol.
    • C. phenol & furfural.
    • D. propane & liquid sulphur dioxide.
    • Discuss
    • 10. Which of the following is used as a catalyst in fluidised bed catalytic cracking?

    • Options
    • A. Silica-magnesia
    • B. Silica-alumina
    • C. Bentonite clays
    • D. All (a), (b) and (c)
    • Discuss


    Comments

    There are no comments.

Enter a new Comment