181. __________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation.
Magnesium
Potassium
Calcium
Sodium
✅ The correct answer is option A.
Petroleum Refinery Engineering MCQs
182. Operating temperature and pressure in catalytic reforming is about
1-5 Kgf/cm2 & 200°C.
15-45 Kgf/cm2 & 450-550°C.
50 – 75 kgf/cm2 & 600 – 800°C.
5-10 kgf/cm2 & 150 – 250°C.
✅ The correct answer is option B.
183. The main aim of cracking is to produce
gasoline
lube oil
petrolatum
coke
✅ The correct answer is option A.
184. Catalyst used in alkylation process is
sulphuric acid
nickel
silica gel
alumina
✅ The correct answer is option A.
185. Performance number of a liquid fuel is related to its
wax content
spontaneous ignition temperature
knocking tendency
sulphur content
✅ The correct answer is option B.
186. Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.
85
65
50
98
✅ The correct answer is option A.
187. A petroleum well is called ‘dry’, if it contains
very little oil.
no natural gas.
only natural gas.
all (a), (b) and (c).
✅ The correct answer is option C.
188. Which of the following tests is not done for transformer oil ?
Flash point and acid value.
Aniline point.
Dielectric strength.
Copper strip corrosion test.
✅ The correct answer is option B.
189. Which of the following is the easiest to crack?
Paraffins
Olefins
Naphthenes
Aromatics
✅ The correct answer is option A.
190. Name the endothermic reaction out of the following:
Catalytic cracking.
Hydrocracking.
Dehydrogeneration of naphthene to produce aromatic.
Catalytic polymerisation.
✅ The correct answer is option C.