171. Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.
smoke point
octane number
cetane number
viscosity
✅ The correct answer is option B.
Petroleum Refinery Engineering MCQs
172. LPG stands for
liquid petroleum gas
liquified petrol gas
liquid petrol gas
liquefied petroleum gas
✅ The correct answer is option D.
173. Aniline point is a property of the
diesel
LPG
naphtha
gasoline
✅ The correct answer is option C.
174. Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ‘salty crude’.
1
5
15
25
✅ The correct answer is option B.
175. __________ is not an important refinery process for upgrading the quality of lubricating oil.
Deoiling
Solvent refinning
Clay treatment
Hydrotreatment
✅ The correct answer is option A.
176. Catalyst used in catalytic reforming is
platinum on alumina
nickel
iron
aluminium chloride
✅ The correct answer is option A.
177. Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its
molecular weight
aromatics content
both a & b
neither a nor b
✅ The correct answer is option C.
178. Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
0.1
1
2.5
3.5
✅ The correct answer is option B.
179. Which of the following processes consumes hydrogen ?
Fluid catalytic cracking
Visbreaking
Propane deasphalting
None of these
✅ The correct answer is option A.
180. Which one is used to determine the colour of petroleum products ?
Colour comparator
Saybolt chromometer
Cleveland apparatus
None of these
✅ The correct answer is option A.