Oil Refinery Petroleum Engineering Online Practice Test - Set 17 - ObjectiveBooks
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Oil Refinery Petroleum Engineering Online Practice Test - Set 17

Practice Test: Question Set - 17


1. Solvent used in the deasphalting process is
    (A) Furfural
    (B) Phenol
    (C) Propane
    (D) Hexane

2. Operating temperature and pressure in catalytic reforming is about
    (A) 1-5 Kgf/cm2 & 200°C
    (B) 15-45 Kgf/cm2 & 450-550°C
    (C) 50 - 75 kgf/cm2 & 600 - 800°C
    (D) 5-10 kgf/cm2 & 150 - 250°C

3. In solutizer sweetening process, solutizer solution used is
    (A) Methanol in Unisol process
    (B) Naphthenic acid in Mercapsol process
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

4. Which of the following has the lowest viscosity (at a given temperature) of all?
    (A) Naphtha
    (B) Kerosene
    (C) Diesel
    (D) Lube oil

5. A petroleum well is called 'dry', if it contains
    (A) Very little oil
    (B) No natural gas
    (C) Only natural gas
    (D) All (a), (b) and (c)

6. Presence of sulphur in gasoline
    (A) Leads to corrosion
    (B) Increases lead susceptibility
    (C) Decreases gum formation
    (D) Helps during stabilisation

7. __________ converts n-paraffins to i-paraffins.
    (A) Alkylation
    (B) Polymerization
    (C) Isomerization
    (D) None of these

8. Higher viscosity of lubricating oil usually signifies
    (A) Lower Reid vapor pressure
    (B) Higher acid number
    (C) Higher flash point and fire point
    (D) Lower flash point and fire point

9. Both asphalt and wax are produced by __________ base crude oils.
    (A) Naphthenic
    (B) Asphalt
    (C) Paraffin
    (D) Mixed

10. Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)?
    (A) Diesel
    (B) Gasoline
    (C) Atmospheric gas oil
    (D) Vacuum gas oil

11. Fuel oil is subjected to visbreaking to reduce its
    (A) Pour point
    (B) Viscosity
    (C) Pressure drop on pumping
    (D) All (a), (b) and (c)

12. Pick out the wrong statement.
    (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

13. Viscosity index of a lubricating oil
    (A) Is the measure of its flash point
    (B) Is the measure of variation of viscosity with temperature
    (C) Should be low
    (D) None of these

14. Smoke volatility index is equal to smoke point plus
    (A) 0.42 × (% distilled at 204°C)
    (B) 5 mm
    (C) 0.84 × (% distilled at 204°C)
    (D) 10 mm approximately

15. Which of the following has the highest viscosity of all (at a given temperature)?
    (A) Naphtha
    (B) Fuel oil
    (C) Light diesel oil
    (D) Petrol

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