Elements of Petroleum Refinery Engineering pdf - Set 09 - ObjectiveBooks

Elements of Petroleum Refinery Engineering pdf - Set 09

Practice Test: Question Set - 09

1. Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the
    (A) Elimination of solvent drying facility
    (B) Higher nitration temperature
    (C) Lower solvent dilution ratio
    (D) All (a), (b) & (c)

2. Which of the following factors does not govern the mechanism of petroleum formation from organic sources?
    (A) pH of the soil
    (B) Bacterial action
    (C) Heat
    (D) Pressure

3. Smoke point of a good burning kerosene may be around __________ mm.
    (A) 0-5
    (B) 20-25
    (C) 60-75
    (D) 100-120

4. Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomization in conventional burner is __________ centistokes (or 100 Redwood I seconds).
    (A) 5
    (B) 25
    (C) 50
    (D) 100

5. Gum formation in stored gasoline is mainly due to the
    (A) Alkylation of unsaturated
    (B) Presence of sulphur
    (C) Oxidation & polymerization of unsaturated
    (D) Higher aromatic content

6. Aromatics have the highest __________ of all the hydrocarbons of same carbon atoms.
    (A) Smoke point
    (B) Octane number
    (C) Cetane number
    (D) Viscosity

7. LPG when brought to atmospheric pressure & temperature will be a
    (A) Liquid lighter than water
    (B) Liquid heavier than water
    (C) Gas lighter than air
    (D) Gas heavier than air

8. Lane and Garton classification of petroleum is based on its
    (A) Composition
    (B) Specific gravity
    (C) Optical properties
    (D) Viscosity

9. Naphthenic acid is a/an __________ compound.
    (A) Sulphur
    (B) Nitrogen
    (C) Oxygen
    (D) None of these

10. Road grade bitumen is produced from vacuum residue by its
    (A) Aeration
    (B) Pyrolysis
    (C) Hydrogenation
    (D) Steam reforming

11. Flash point of diesel/kerosene (>50°C) is determined by the
    (A) Abel apparatus
    (B) Pensky-Martens apparatus
    (C) Saybolt chromometer
    (D) None of these

12. Products drawn from the top to bottom of the crude oil distillation column has progressively increasing
    (A) Boiling points
    (B) Molecular weight
    (C) C/H ratio
    (D) All (a), (b) and (c)

13. Which of the following is desirable in diesel and kerosene but is undesirable in gasoline?
    (A) Aromatics
    (B) Mercaptans
    (C) Paraffins
    (D) Naphthenic acid

14. Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as
    (A) α-methyl naphthalene
    (B) 2-2-4 tri methyl pentane
    (C) 1, 3 butadiene
    (D) Tetra methyl ethylene

15. Cetane number of alpha methyl naphthalene is assumed to be
    (A) 0
    (B) 100
    (C) 50

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