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Petroleum Refinery Engineering General Knowledge Quiz | Petroleum Refinery Engineering General Knowledge Objective Type Questions & Answers

Questions
21 Gasoline extracted from natural gas (by compression and cooling) is called the ___________ gasoline?
A Polymer
B Unleaded
C Casing head
D Straight run

Answer: Unleaded
22 _____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A Sodium
B Magnesium
C Potassium
D Calcium

Answer: Magnesium
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23 Clay treatment is used to remove ___________________ ?
A Salt from the crude oil
B Colour & dissolved gases from cracked gasoline
C Wax from lube oil
D None of these

Answer: Wax from lube oil
24 Which of the following is the easiest to crack ?
A Paraffins
B Olefins
C Naphthenes
D Aromatics

Answer: Paraffins
25 Which parameter is used for the grading of paraffin waxes ?
A Specific gravity
B Melting point
C Viscosity
D Penetration number

Answer: Viscosity
26 Higher vapour pressure of gasoline indicates _________________?
A Low flash point
B High breathing loss
C Both A. and B.
D Neither A. nor B.

Answer: Neither A. nor B.
27 1 centistoke is equal to ______________ Redwood I seconds?
A 1
B 4.08
C 0.408
D 40.8

Answer: 4.08
28 Which of the following fractions of petroleum contains maximum sulphur ?
A Diesel
B Gasoline
C Naphtha
D Atmospheric residue

Answer: Atmospheric residue
29 Good quality kerosene should have__________________?
A Low smoke point
B High smoke point
C High aromatics content
D Low paraffins content

Answer: High smoke point
30 Catalyst used in alkylation process is__________________?
A Sulphuric acid
B Nickel
C Silica gel
D Alumina

Answer: Sulphuric acid
31 Cracking is___________________?
A An exothermic reaction
B An endothermic reaction
C Favoured at very low temperature
D None of these

Answer: An endothermic reaction
32 Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?
A Less than 90% promotes polymerisation
B More than 98% promotes cracking
C Both A. and B.
D Neither A. nor B.

Answer: Both A. and B.
33 The conductivity of crude oil-water mixture depends on the__________________?
A pH value
B Water percentage
C Temperature
D All A., B. and C

Answer: All A., B. and C
34 Octane number of n-heptane is assumed to be_________________?
A 100
B 0
C 70
D ∞

Answer: 0
35 Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners ?
A PCM
B Tar
C Light diesel oil
D Low viscosity furnace oil

Answer: Light diesel oil
36 Catalyst used in isomerisation process is __________________ ?
A H2SO4
B H3PO4
C HF
D AlCl3

Answer: AlCl3
37 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

Answer: 20
38 Catalyst used in the catalytic polymerisation is__________________?
A Phosphoric acid on kieselguhr
B Aluminium chloride
C Nickel
D Vanadium pentoxide

Answer: Phosphoric acid on kieselguhr
39 Crude topping column operates at ________________ pressure?
A Atmospheric
B 10 atm
C Vacuum
D 3 atm

Answer: Atmospheric
40 A typical yield of diesel in straight run distillation of crude oil may be about ________________ percent?
A 35
B 8
C 18
D 28

Answer: 8

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