Petroleum Refinery Engineering Book MCQ Questions - Set 04 - ObjectiveBooks

Petroleum Refinery Engineering Book MCQ Questions - Set 04

Practice Test: Question Set - 04

1. Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
    (A) 0.03
    (B) 3
    (C) 35
    (D) 70

2. Deoiling of wax is done by its
    (A) Heating
    (B) Cooling
    (C) Solvent extraction
    (D) Both (b) & (c)

3. LPG stands for
    (A) Liquid petroleum gas
    (B) Liquefied petrol gas
    (C) Liquid petrol gas
    (D) Liquefied petroleum gas

4. The order of preference for feedstock to a catalytic reformer is
    (A) Catalytic naphtha - coking naphtha - virgin naphtha
    (B) Coking naphtha - virgin naphtha - catalytic naphtha
    (C) Virgin naphtha - catalytic naphtha - coking naphtha
    (D) Virgin naphtha - coking naphtha - catalytic naphtha

5. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
    (A) 1
    (B) 20
    (C) 100
    (D) 500

6. Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
    (A) 0.1 to 0.5
    (B) 1.5 to 4.5
    (C) 7.5 to 12.5
    (D) 15 to 20

7. Catalyst used in isomerization process is
    (A) H2SO4
    (B) H3PO4
    (C) HF
    (D) AlCl3

8. The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
    (A) 3
    (B) 300
    (C) 3000
    (D) 1000

9. Which of the following does not require preheating during storage in the storage tank as well as during atomization through burners?
    (A) PCM
    (B) Tar
    (C) Light diesel oil
    (D) Low viscosity furnace oil

10. Which of the following categories of gasoline has the highest lead susceptibility?
    (A) Straight run gasoline
    (B) Platinum reformed gasoline
    (C) Catalytical cracked gasoline
    (D) Polymer gasoline

11. Octane number of n-heptane is assumed to be
    (A) 100
    (B) 0
    (C) 70

12. Tetra-ethyl lead is added in gasoline to
    (A) Increase its smoke point
    (B) Reduce gum formation
    (C) Reduce the pour point
    (D) Increase its octane number

13. The conductivity of crude oil-water mixture depends on the
    (A) pH value
    (B) Water percentage
    (C) Temperature
    (D) All (a), (b) and (c)

14. During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.
    (A) Decreases
    (B) Increases
    (C) Remains unchanged
    (D) Decreases linearly

15. Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration.
    (A) Less than 90% promotes polymerization
    (B) More than 98% promotes cracking
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

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