Petroleum Refinery Engineering Question Papers MCQ - Set 20 - ObjectiveBooks
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Petroleum Refinery Engineering Question Papers MCQ - Set 20

Practice Test: Question Set - 20


1. __________ test is done to find out the softening point of bitumen.
    (A) Impact
    (B) Ball and ring
    (C) Flame
    (D) Viscosity

2. Aniline point is the
    (A) Characteristic property of diesel & lubricating oils
    (B) Measure of aromatic content of oil
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

3. In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.
    (A) 100
    (B) 200-300
    (C) 1000-10000
    (D) 10

4. Which of the following is used as a catalyst in fluidized bed catalytic cracking?
    (A) Silica-magnesia
    (B) Silica-alumina
    (C) Bentonite clays
    (D) All (a), (b) and (c)

5. Which of the following processes in oil refinery does not employ ‘cracking’?
    (A) Coking
    (B) Visbreaking
    (C) Pyrolysis
    (D) None of these

6. Research octane number refers to the
    (A) Low octane number motor fuels
    (B) High octane number motor fuels
    (C) High octane number aviation fuels
    (D) Unleaded motor fuels

7. Catalytic desulphurization process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
    (A) Bauxite
    (B) Fuller’s earth
    (C) Activated clay
    (D) All (a), (b) & (c)

8. Mercaptans are added to liquefied petroleum gas (LPG) to
    (A) Reduce its cost
    (B) Narrow down its explosion limit
    (C) Assist in checking its leakage from cylinder
    (D) Increase its calorific value

9. Diesel index is defined as
    (A) (°API) × (Aniline Point, °F)/100
    (B) (°API) × (Aniline Point, °C)/100
    (C) (°API) × (100)/Aniline Point, °F
    (D) (°API) × (100)/Aniline Point, °C

10. Visbreaking process is used mainly for making
    (A) High cetane diesel
    (B) High octane gasoline
    (C) Fuel oil
    (D) Smoke free kerosene

11. Carbon/hydrogen ratio (by weight) is maximum (out of following) for
    (A) Gasoline
    (B) Kerosene
    (C) Light gas oil
    (D) Heavy fuel oil

12. Pick out the correct statement about catalytic polymerization.
    (A) H2SO4 polymerization process gives gasoline rich in unsaturates
    (B) In H2SO4 polymerization, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

13. Stabilization of gasoline (petrol) means
    (A) Removal of dissolved gases from it
    (B) Increasing its oxidation stability
    (C) Improving its lead susceptibility
    (D) Increasing its vapor pressure

14. With increase in density, the viscosity of petroleum products
    (A) Increases
    (B) Decreases
    (C) Remain same
    (D) Either (a) or (b)

15. Naphthenic acid is represented by
    (A) CnH2n+2O2
    (B) CnH2n-2O2
    (C) CnH2n+2O2 (n ≥ 6)
    (D) CnH2n+6O2 (n ≤ 6)

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