Computer Test in Petroleum Refining Engineering - Set 12 - ObjectiveBooks
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Computer Test in Petroleum Refining Engineering - Set 12

Practice Test: Question Set - 12


1. Reforming
    (A) Uses naphtha as feedstock
    (B) Does not much affect the molecular weight of the feed
    (C) Improves the quality & yield of gasoline
    (D) All (a), (b) and (c)

2. The coking process normally mostly used in Indian oil refineries is the __________ coking process.
    (A) Delayed
    (B) Flexi
    (C) Fluid
    (D) Contact

3. Feed for reforming is generally
    (A) Naphtha or straight run gasoline
    (B) Reduced crude
    (C) Vacuum gas oil
    (D) Atmospheric gas oil

4. The proper arrangement of the petroleum fractions in order of their boiling points is
    (A) Lubricating oil > diesel > petrol > LPG
    (B) Lubricating oil > petrol > diesel > LPG
    (C) Petrol > lubricating oil > diesel > LPG
    (D) Petrol > diesel > LPG > lubricating oil

5. H/C ratio (by weight) for the same number of carbon atoms is the highest in case of
    (A) Aromatics
    (B) Paraffins
    (C) Olefins
    (D) Naphthenes

6. Diesel used in naval applications has a minimum cetane number of
    (A) 25
    (B) 35
    (C) 45
    (D) 65

7. Highest quality bitumen is produced from the __________ crude oil.
    (A) Paraffinic
    (B) Naphthenic
    (C) Intermediate
    (D) Mixed

8. Crude oil is transported inland from oil field to refineries, mainly by the
    (A) Road tankers
    (B) Rail tankers
    (C) Underground pipelines
    (D) None of these

9. Molecular weight of petrol may be about
    (A) 40-60
    (B) 100-130
    (C) 250-300
    (D) 350-400

10. Flash point of atmospheric distillation residue is determined by __________ apparatus.
    (A) Pensky-Martens (closed cup type)
    (B) Abel
    (C) Cleveland (open cup type)
    (D) None of these

11. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.
    (A) 4
    (B) 10
    (C) 18
    (D) 26

12. Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to
    (A) Increase the yield of light distillates
    (B) Suppress coke formation
    (C) Enhance the octane number of gasoline
    (D) Reduce gum content in gasoline

13. Casing head gasoline is the liquid
    (A) Butane
    (B) Propane
    (C) Natural gas
    (D) Gasoline separated from wet natural gas by compression

14. Which of the following is the most important property for a jet fuel?
    (A) Cloud point
    (B) Pour point
    (C) Color
    (D) Freezing point

15. The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively
    (A) 10 and 120
    (B) 1 and 200
    (C) 50 and 250
    (D) 10 and 300

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