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

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

View Answer

Answer: Magnesium

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

View Answer

Answer: Wax from lube oil

24 Which of the following is the easiest to crack ?

A Paraffins

B Olefins

C Naphthenes

D Aromatics

View Answer

Answer: Paraffins

25 Which parameter is used for the grading of paraffin waxes ?

A Specific gravity

B Melting point

C Viscosity

D Penetration number

View Answer

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.

View Answer

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

View Answer

Answer: 4.08

28 Which of the following fractions of petroleum contains maximum sulphur ?

A Diesel

B Gasoline

C Naphtha

D Atmospheric residue

View Answer

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

View Answer

Answer: High smoke point

30 Catalyst used in alkylation process is__________________?

A Sulphuric acid

B Nickel

C Silica gel

D Alumina

View Answer

Answer: Sulphuric acid

31 Cracking is___________________?

A An exothermic reaction

B An endothermic reaction

C Favoured at very low temperature

D None of these

View Answer

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.

View Answer

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

View Answer

Answer: All A., B. and C

34 Octane number of n-heptane is assumed to be_________________?

A 100

B 0

C 70

D ∞

View Answer

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

View Answer

Answer: Light diesel oil

36 Catalyst used in isomerisation process is __________________ ?

A H2SO4

B H3PO4

C HF

D AlCl3

View Answer

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

View Answer