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  • Question
  • Which of the following has the highest viscosity of all (at a given temperature)?


  • Options
  • A. Naphtha
  • B. Fuel oil
  • C. Light diesel oil
  • D. Petrol

  • Correct Answer
  • Fuel oil 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. Sulphuric acid treatment of petroleum products removes the __________ materials.

    • Options
    • A. gum forming
    • B. color forming
    • C. asphaltic
    • D. all (a), (b) & (c)
    • Discuss
    • 2. Main constituent of natural gas is

    • Options
    • A. CH4
    • B. C2H2
    • C. C2H4
    • D. C2H6
    • Discuss
    • 3. Which of the following has the maximum °API gravity of all?

    • Options
    • A. Diesel
    • B. Kerosene
    • C. Petrol
    • D. Furnace oil
    • Discuss
    • 4. Crude oil produced by Indian oil fields are predominantly __________ in nature.

    • Options
    • A. paraffinic
    • B. naphthenic
    • C. asphaltic
    • D. mixed base
    • Discuss
    • 5. Pick out the wrong statement.

    • Options
    • A. Multigrade lubricating oils have high viscosity index.
    • B. Paraffinic oil has very high viscosity index.
    • C. Naphthenic oil has very low viscosity index.
    • D. High viscosity index means a large change in viscosity with change in temperature.
    • Discuss
    • 6. Petroleum deposits are detected by the.

    • Options
    • A. oil seepage at the surface of the earth.
    • B. measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth.
    • C. age & nature of rocks inside the crust of the earth.
    • D. all (a), (b) and (c)
    • Discuss
    • 7. Performance number of a liquid fuel is related to its

    • Options
    • A. wax content
    • B. spontaneous ignition temperature
    • C. knocking tendency
    • D. sulphur content
    • Discuss
    • 8. Older crude petroleum

    • Options
    • A. is light and better.
    • B. gives more distillates.
    • C. gives less tar.
    • D. all (a), (b) and (c).
    • Discuss
    • 9. Smoke point of a good burning kerosene may be around __________ mm.

    • Options
    • A. 0-5
    • B. 20-25
    • C. 60-75
    • D. 100-120
    • Discuss
    • 10. Which of the following is a naphthene?

    • Options
    • A. Butene
    • B. Butadiene
    • C. Cyclohexane
    • D. Acetylene
    • Discuss


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