Elements of Petroleum Refinery Engineering Online Test - Set 13 - ObjectiveBooks

Elements of Petroleum Refinery Engineering Online Test - Set 13

Practice Test: Question Set - 13

1. Pyrolysis of kerosene or natural gasoline is done to produce mainly the
    (A) Olefins and aromatics
    (B) Lighter paraffins
    (C) Stabilized gasoline
    (D) Diesel

2. A good lubricant should have high
    (A) Viscosity index
    (B) Volatility
    (C) Pour point
    (D) None of these

3. Waxes present in petroleum products
    (A) Can be separated out by distillation
    (B) Are not soluble in them
    (C) Crystallize out at low temperature
    (D) Decrease their viscosity

4. Name the hydrocarbon having the poorest oxidation stability.
    (A) Naphthene
    (B) Olefin
    (C) Paraffin
    (D) Aromatics

5. The terminology used for the bottom most product from the vacuum crude distillation unit is
    (A) Residual crude
    (B) Residuum
    (C) Reduced crude
    (D) Petrolatum

6. Pick out the additive property of lube oil out of following.
    (A) °API gravity
    (B) Specific gravity
    (C) Viscosity
    (D) Flashpoint

7. Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.
    (A) 85
    (B) 65
    (C) 50
    (D) 98

8. Phenols are added in gasoline to
    (A) Improve the octane number
    (B) Act as an antioxidant
    (C) Reduce its viscosity
    (D) Increase its pour point

9. Percentage of straight run gasoline in a typical crude oil may be around
    (A) 6
    (B) 18
    (C) 38
    (D) 52

10. Paraffin base crude oil as compared to asphalt base crude gives
    (A) Higher yield of straight run gasoline
    (B) Higher octane number gasoline
    (C) Lower viscosity index lube oil
    (D) Poorer yield of lube oil

11. The main reaction in reforming is the
    (A) Dehydrogenation of naphthenes
    (B) Hydrogenation of naphthenes
    (C) Hydrocracking of paraffins
    (D) Saturation of olefins

12. Petrolatum is
    (A) Same as petroleum ether
    (B) Petroleum coke
    (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids
    (D) None of these

13. Clay treatment of petroleum products
    (A) Decolorizes & stabilizes cracked gasoline
    (B) Desulphurise straight run gasoline & kerosene
    (C) Adsorb arsenic from feedstock to catalytic reforming
    (D) All (a), (b) & (c)

14. Flash point of an oil gives an idea of the
    (A) Nature of boiling point diagram of the system
    (B) Amount of low boiling fraction present
    (C) Explosion hazards
    (D) All (a), (b) and (c)

15. Aniline point is a property of the
    (A) Diesel
    (B) LPG
    (C) Naphtha
    (D) Gasoline

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